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First images from Euclid are in

1413 points8 monthsdlmultimedia.esa.int
skybrian8 months ago

If you'd prefer not to watch a video, try this page [1] that has images.

Hopefully there will be a zoomable image (like Google Maps) eventually.

[1] https://www.esa.int/Science_Exploration/Space_Science/Euclid...

a_t488 months ago

If the raw data is available, a slippy map server is very easy to spin up.

veunes8 months ago

Thanks for sharing! That’s a great alternative

relistan8 months ago

Thank you

spoaceman77778 months ago

[flagged]

neom8 months ago

Some of that zooming in made me feel pretty damn uncomfortable. It really is f'ing massive out there huh. Makes me wonder what this is all about, I'm sure it's something, I wonder what. :)

layer88 months ago

It’s even more “massive” down below. There are only 27 orders of magnitude between human size and the size of the observable universe, but 35 orders of magnitude between human size and the Planck length. ;)

lynguist8 months ago

So we are rather “large” beings and not small ones.

Are these orders of magnitude scaled by 10 to go from one to the next?

malodyets8 months ago

Powers of 10 is the classic presentation: https://youtu.be/0fKBhvDjuy0

statnamara8 months ago

I haven't seen this in many years, it really is a spectacular way of making you feel the vastness of the universe and the difference in scales.

0x5345414e8 months ago

Yes

ThomasBHickey8 months ago

'Fundamentals' by Frank Wilczek explores this: https://www.penguinrandomhouse.com/books/554034/fundamentals...

worldsayshi8 months ago

It could really be much larger beyond the observable horizon though? But I guess we will never know.

layer88 months ago

It might, and that’s part of the reason why I put a smiley. On the other hand, the larger you go, the less relevant it becomes, because if the light cones don’t touch then it might just as well be a separate universe.

tsimionescu8 months ago

It could also be much smaller below the planck scale, but not causally connected to our level. That is, nothing in known physics prevents their being entire universes of particles that are so small that it is impossible to ever detect them with any of the Standard Model particles.

+1
worldsayshi8 months ago
seanw4448 months ago

Unless faster-than-light travel becomes possible.

veunes8 months ago

Mind-blowing, right? It's wild to think we’re just floating in the middle of all that

aoeusnth18 months ago

And a currently unknown number of OOMs (possibly infinite) beyond the observable horizon.

wayoverthecloud8 months ago

I think that too. That it's surely meant to be something. But sometimes I think what does "meaning" even mean? Does universe really have any "meaning", the term that humans invented and that even they are unsure of? Then, I think it's a big randomness, a random accident, a big joke, just happening with nothing to make sense of.

codeulike8 months ago

There is a theory which states that if ever anyone discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarre and inexplicable.

There is another theory which states that this has already happened.

- Douglas Adams

feoren8 months ago

It's not a joke, because jokes have underlying meaning. It is somewhere between a "random accident" and the only way it could have possibly been given the constraints of fundamental physics. I suspect that everything that could possibly be, is, but it's random that you are you and I am me and we find ourselves here in this corner of this galaxy in this part of the universe which might itself be the inside of a giant black hole. But even if our universe is random, that doesn't mean there's nothing to make sense of. There's lots to make sense of.

kortilla8 months ago

Jokes don’t always have meaning. “I want to play a joke on Bob” can very easily mean “I’m just going to torture Bob a bit for my amusement”. The joke will not have meaning to Bob.

+1
mmooss8 months ago
+2
alonsonic8 months ago
veunes8 months ago

I like the idea that while everything may feel random, there’s still a rich tapestry of experiences and interactions to explore

km1448 months ago

I don't think the universe can have "meaning" in the human sense, because any potential "meaning" is outside of our field of observation or understanding. If something indeed created the universe or some definitive sequence of events spurred it into existence, I think that would constitute "meaning" enough for humans to be satisfied. But there is almost certainly not way to observe that fact because it is outside of the realm of our possible experiences.

But even then, if we knew what caused the universe to exist, we would then be looking at the cause of the universe and wondering what caused that cause to exist. And so I think we'd still be left wondering why anything exists at all at the end of the day.

smeej8 months ago

I think this is why Christians posit that the Creator actually entered into humanity, so we could understand--or at least be as much less wrong in our speculations as we can handle, small as we are.

They even got as far as describing God as "uncaused causality" centuries ago, which lined up pretty well with the translation of the name God reportedly gave one of their forbearers from a burning bush, "I am who am," or colloquially, "I'm the one who just is. I am being-itself, not contingent in any way, outside your concepts of 'before' or 'contingent upon.'"

+1
tsimionescu8 months ago
alok-g8 months ago

>> I think it's a big randomness

+1. A big randomness, following the laws of Physics that are themselves possibly rooted in something.

With that big randomness, by some chance, intelligent life has happened that can wonder.

Where's more to be uncovered are in the laws of Physics (and why are they what they are), and thereby better matching the probabilities of the said randomness.

tsimionescu8 months ago

I don't think there's any reason to believe that there can be an explanation for the laws of physics in this sense. Just like the laws of logic, they might just be.

alok-g8 months ago

I agree.

There's surely however more to uncover for Physics.

veunes8 months ago

That's a deep thought! I think the idea of "meaning" is something we created to make sense of the world around us

layer88 months ago

Or it might be the necessary logical consequence of having anything at all.

AlecSchueler8 months ago

I've always thought of it more as the logical consequence of having nothing, the need for there to be a something to oppose it.

alok-g8 months ago

When they applied Heisenberg principle to vacuum to bring up zero point energy, Casimir force was found, etc., I understood thtis as the principle opposing nothingness.

imchillyb8 months ago

So many rules, laws, and systems for all of this to be random. Seems a waste of good code if everything is random.

Is an ecosystem random? What happens when one outside force is added to an ecosystem? There's plenty of examples around the globe of this.

Life doesn't 'find a way' and balance. The ecosystem is damaged, and often times destroyed by adding a single non-native species. That doesn't seem random does it?

Randomness should have error correction, as it's random. Doesn't seem to though.

TeMPOraL8 months ago

> Life doesn't 'find a way' and balance. The ecosystem is damaged, and often times destroyed by adding a single non-native species.

Of course it does. "Ecosystem" and "species" and "native" are human terms referring to categories we invented to make sense of things. Life itself is one ongoing, unbroken, slow-burn chemical reaction at planetary scale. It's always in flux, it's always balanced in myriad ways on some timescales, unbalanced in others.

Even without getting reductive to this degree, there's hardly a case an ecosystem was destroyed. Adding non-native species ends up rebalancing things, sometimes transforming them into something dissimilar to what came before - but it's not like life disappears. The ecosystem is there, just different. Though it sure sucks to be one of the life forms depending on the "status quo".

> That doesn't seem random does it?

Yes, it very much is random. If thermodynamics teaches us anything, it's that random looks quite organized if you zoom out enough and smooth over details.

phito8 months ago

Ecosystems do adapt. They look broken to us because of our ridiculously small life span.

That's why I dislike framing climate change actions as "saving the planet". The planet will be just fine. We won't.

+2
shiroiushi8 months ago
caf8 months ago

You could think of it in the sense of "saving money" - if you're a notorious spendthrift, the money hasn't actually disappeared, but it's of no use to you anymore.

HarHarVeryFunny8 months ago

Every part of the ecosystem, at any point in history, has co-evolved to be the state it is in - it's an intricate network all balanced to co-exist. If you change any part of the this ecosystem then the rest will have to adapt to the change, but evolutionary timescales are relatively long, and it's not going to settle down to where it was before. Whether you regard a new balance as simply that, or as the old balance being destroyed is just your choice of description.

Using the term "error correction" incorrectly assumes there is some "correct" state to return to, but nature is indeed random and continuously evolving, and there is no privileged "correct" state, just the ever-evolving current state.

ordu8 months ago

If you first saw Earth billion years ago, you wouldn't be able to predict the current state of affairs. Why? Because there would be myriads of possible outcomes, and you'd struggle to pick one, even just imagining all of them would be impossible for a weak human mind. Weak human mind cannot truly grasp the full extent of what happens now despite it can look at it directly.

But among myriads of possible outcomes the would be a lot of outcomes that you would describe as "non random" if you saw them. Maybe any of them will not look as random. If evolution have chosen one of "non-random" outcomes by a dice roll, would it be right to call its pick "non random"?

felizuno8 months ago

I've been convinced that random is so maximally inclusive that there is no error category. Obviously uniformity is an anti-random condition that would bait the label "error" but I think it's still perfectly random to flip a coin tails 2, 4, 6, 6k times consecutively and the uniformity is simply a shocking instance of random. To your point, I don't think random implies balance though I understand that statistically this is the expected outcome of large set randomness such as ...the universe... (OP)

Many of my thoughts on randomness are seeded by David Deutsch's "Beginning of infinity" which is an interesting read FWTW

+3
semi-extrinsic8 months ago
andsoitis8 months ago

> Randomness should have error correction, as it's random.

Randomness itself doesn't have error correction, but systems that generate or use randomness may have checks to ensure they function correctly. Error correction applies to data or signal integrity, which is a separate concept from pure randomness.

frabjoused8 months ago

My money is on it just being a playing field for the game of life. A damn good one at that.

SamPatt8 months ago

Non-native species don't exist when you use long time scales and realize humans are species too.

Inheritors of the Earth: How Nature Is Thriving in an Age of Extinction by Chris Thomas is an interesting book on this topic.

samus8 months ago

Ecosystems eventually adapt to the newcomers. And it's not like the species already part of the ecosystem wouldn't ever evolve to something detrimental to the whole.

dyauspitr8 months ago

It’s ridiculous. That final zoomed in image that showed one galaxy has maybe 300 million stars in it. Just that one. The scope is… unbelievable silly.

Keysh8 months ago

Probably closer to 300 billion stars. (It's roughly the same size as the Milky Way, which is estimated to have ~ 100 to 400 billion stars.)

cubefox8 months ago

Unbelievable

dyauspitr8 months ago

Yeah, that’s what I meant to type. 300 billion.

mixmastamyk8 months ago

Billions and Billions —Sagan

cameldrv8 months ago

Take a look at the Hubble ultra deep field image. It’s a tiny part of the sky but it’s hundreds of galaxies. It’s hard to wrap your head around…

1970-01-018 months ago

The actual problem is that we were made early enough to begin to understand the full scale of it, but we're still not mature enough to go out there and explore it. Therefore, you can reason that now is the right time to get behind anything that pushes us beyond the Earth.

mr_mitm8 months ago

These distances are well outside the scope of exploration. Getting to the next solar system is already a seemingly insurmountable challenge. Getting to the next galaxy? Forget it. Getting to these galaxies we see in the picture? Absolutely no way. I know people like to be optimistic about these things but it's honestly pure wishful thinking.

seanw4448 months ago

This is short-sighted. Maybe not in our lifetimes. If it were 1902, you'd probably be mocking the Wright brothers.

+3
dreamcompiler8 months ago
+1
mr_mitm8 months ago
1970-01-018 months ago

Once we have fusion reactors, it won't be.

nojs8 months ago

Your fusion reactor will still take a while to travel 420 million light-years.

+2
Night_Thastus8 months ago
vjk8008 months ago

Since we don't observe any sign of anyone else explore it, or even broadcast themselves through it, it might be that it's not possible to explore it.

behnamoh8 months ago

Or maybe it's due to the Dark Forest theory (https://en.wikipedia.org/wiki/Dark_forest_hypothesis#:~:text....)

dfilppi8 months ago

[dead]

renegade-otter8 months ago

The Cosmic Deep State went to great lengths to make all of this very.... big.

thenobsta8 months ago

Big Universe has it out for the little guy. It's trying to make it very hard to make sense of its master plan.

ilt8 months ago

Too big to fail?

kabdib8 months ago

Entropy never sleeps

grues-dinner8 months ago

What really gets me is how much of that virtual infinity is completely, utterly off-limits to us for all eternity. Trillions upon trillions of planets and stars that will just wink out one day, never to be seen again.

Short of some extremely radical new physics, humans will never, ever reach these other galaxies. Maybe the Magellanic Clouds, and Andromeda (which is coming to us).

Even the most optimistic sci-fi like Star Trek balks at traversing intergalactic space and they have warp drive, wormholes and sometimes go to other dimensions!

CrispyKerosene8 months ago

I wasn't prepared for an existential crisis this morning.

elorant8 months ago

Perhaps that's what's required to have intelligent life spontaneously appear and evolve to our level.

kfrzcode8 months ago

Wondering is the what.

BLKNSLVR8 months ago

This one makes me emotional, greatly helped by the Vangelis soundtrack: https://www.youtube.com/watch?v=GoW8Tf7hTGA

downboots8 months ago

To my limited knowledge it's not even clear what the edges are but I think it's probably safe to say that the bigger it is, the more complexity you can cram in there.

bane8 months ago

There's plenty of space out in space!

Refusing238 months ago

someone made a larger universe a few blocks down the road, and so we made a larger one just to one-up him

DrBazza8 months ago

“There is a theory which states that if ever anyone discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarre and inexplicable."

vjk8008 months ago

Yeah and the smallest thing that got zoomed in in the video was a galaxy. Like our milky way galaxy, so still fucking huge.

geenkeuse8 months ago

No Man's Sky

alchemist1e98 months ago

This is down voted as a joke yet it is curious that with each upgrade of resolution we get we just see more and more. I always ponder how if we looked at the universe in terms of approximate processing power for a simulation of it that distances and mass are not so relevant but information is. The complexity of quantum mechanical systems within a single living cell is probably much more complex processing than a star. Anyway No Man’s Sky I understand to be a procedurally generated game and not much more than that.

yread8 months ago

Yeah. Do you want to donate your liver?

ratedgene8 months ago

This is the most beautiful thing I've ever seen in my whole life. I'm just over here worried about small nothings and now I'm filled with an overwhelming feeling that I should be a part of something much larger. Truly inspiring, and a little bitter sweet. :)

glimshe8 months ago

When I look to the heavens in awe, thinking about humanity's future and our place in the Universe, I remember that we still have JavaScript and thus very far from space exploration.

araes8 months ago

That's alright, Javascript already has space travel. [1] And quite a few other software languages [2]: Credit to Andrei Kashcha (Github anvaka) [3] previous post on Hacker News for "Software Galaxies" [2]

Also, to @ratedgene if you feel left out, you should be part of something meaningful. Go join the exploration mission for space travel and astronomy. It's a resume submission away. [4]

Having worked at NASA, the work environment, while critical and argumentative much of the time, is still very much sci-fi fans and the dream of galaxies far far away. If European, then ESA. [5] If Asiatic, possibly JAXA [6], China's space agency [7] is usually off limits to posters on HN.

If not those, how about grants and research in related areas. There are many ways to contribute. [8] Checking, there's currently 18 of 3331 solicitations due in the next 30 days. [9]

[1] https://imgur.com/gallery/dive-into-anything-ghost-js-bIYvFm...

[2] https://anvaka.github.io/pm/#/?_k=4hdian

[3] https://github.com/anvaka

[4] https://www.nasa.gov/careers/

[5] https://www.esa.int/About_Us/Careers_at_ESA

[6] https://global.jaxa.jp/about/employ/index.html

[7] https://www.cnsa.gov.cn/english/

[8] https://nspires.nasaprs.com/external/

[9] https://nspires.nasaprs.com/external/solicitations/solicitat...

polishdude208 months ago

Hey JavaScript has been to space!

xenospn8 months ago

Can’t wait for SpaceScript!

lokimedes8 months ago

Ada

uhtred8 months ago

Yes but what did you work on yesterday, what will you work on today, and are there any blockers?

grues-dinner8 months ago

And did you deliver value? https://youtu.be/DYvhC_RdIwQ

tsujamin8 months ago

> existential terror has entered the room

lefrenchy8 months ago

It's just so crazy to me to see a galaxy 420 million light years away. That is so much time for what we're seeing to have changed. I presume life can form within that window given the right conditions, so to some degree it just feels a bit sad that the distance is so great that we can't actually see what may exist in this moment that far away

gary_08 months ago

Given that the speed of light is the speed of causality, technically it's not really 420 million years in the "past" in any meaningful sense. The present is relative, not universal. The collected light we see in our telescopes is a lie about a particular universe that will never be, at least in any tangible way. On a cosmic scale, every spot in the universe sees its own unique sequence of events going on around it, all of it rendered virtually immutable by the relative slowness of c.

It's a beautiful nightmare, isn't it?

https://en.wikipedia.org/wiki/Relativity_of_simultaneity

codethief8 months ago

> Given that the speed of light is the speed of causality, technically it's not really 420 million years in the "past" in any meaningful sense.

Yes, it is. It is 420 million years in the past in our frame of reference. The link you posted is about how frames of reference of other observers might differ from ours. However, doesn't make the notion "420 million years in the past [in our frame of reference]" any less well-defined.

conductr8 months ago

I’ll admit I’m severely undereducated in this stuff, probably less than an average high schooler these day but nevertheless I feel like I’ve considered this before and never knew it had a name. Which makes me feel not completely stupid.

> whether two spatially separated events occur at the same time – is not absolute, but depends on the observer's reference frame.

But What I don’t understand about this is why is “time” framed as observer based? In my mind, the events do happen at the same time and just are unable to be observed as such. I feel like time is a figment of our imagination, it’s just a measurement. In my pea brain time makes sense more as a constant and the other things are something else that impacts the latency of observance

SJC_Hacker8 months ago

> But What I don’t understand about this is why is “time” framed as observer based? In my mind, the events do happen at the same time and just are unable to be observed as such. I feel like time is a figment of our imagination, it’s just a measurement. In my pea brain time makes sense more as a constant and the other things are something else that impacts the latency of observance

Its a logical consequence of the speed of light being constant in all inertial reference frames, regardless of the velocity.

This is an axiom of special relativity, but it has also been verified at (admittedly low) relative velocities.

That in itself is somewhat absurd, but it leads to further absurdities when you do the math. In order for the speed of light to remain invariant, you can no longer speak of an absolute (preferred) frame of reference.

You can of course, privilege certain reference frames e.g. Earth, but its rather arbitrary.

alok-g8 months ago

>> In my mind, the events do happen at the same time and just are unable to be observed as such.

Not so, I would say.

Space and time are inherently linked under special (and General) relativity. For two observers who have relative motion between them, the space (distance between two 'events') and time (between the said events) are both different.

When some poem or a song talks about the universe being frozen at a given instant of time, that can be only in a given reference frame. There's no absolute time for the universe.

satvikpendem8 months ago

If not for observation, what does "happen" mean? Keep in mind observation in the physics sense doesn't mean conscious observation but rather that anything experiences something at all.

nullwriter8 months ago

Absolutely mind blowing - I've not thought of this and will be reading about it

andrewflnr8 months ago

Don't think about it too much. It's wrong. Relativity of simultaneity only kicks in when you have reference frames moving at noticeably different velocities. Which is... not entirely wrong in this case due to the expansion of the universe, but would be equally true of a nearby reference frame moving away equally fast. It's nothing to do with light travel time.

Ed: I've slipped into the fallacy a bit. Reference frames don't have locations, so they can't be "nearby". Just pretend I said "reference frame of a nearby object".

0xDEAFBEAD8 months ago

It might be possible to build a powerful telescope to see life on planets that are closer to us, though: https://www.palladiummag.com/2024/10/18/its-time-to-build-th...

Tepix8 months ago

Or go for the gravitational lens provided by our sun (580 AU out).

Sander_Marechal8 months ago

Ohh I love the idea of a massive telescope that's just compromised of thousands of individual satellites!

vasco8 months ago

In another way it's really cool to be able to "see the past" even if all we see is always the past. At this level it is like a super power. If only some aliens had put a mirror somewhere far so we could see ourselves too. Or multiple mirrors at different distances.

With enough mirrors and light bouncing around the size of the universe itself can be a "storage media" of the past with different photons all around carrying "how this location looked X years ago". "All" you have to do to know what happened is find the right photon to see whatever it is you want to see.

ujikoluk8 months ago

For prior art in this field, see:

https://github.com/yarrick/pingfs

"pingfs is a filesystem where the data is stored only in the Internet itself, as ICMP Echo packets (pings) travelling from you to remote servers and back again."

Also https://en.wikipedia.org/wiki/Delay-line_memory

Storing data as acoustic waves gave a higher capacity in practice, as propagation is slower thus fitting a larger number of symbol per time unit.

lloeki8 months ago

From chainsaws to ICMP echo packets (and more)

http://tom7.org/harder/

ConcernedCoder8 months ago

In theory, couldn't we focus on a perfect spot near a black hole where the light has been warped 180 degrees around it... i.e. if the black hole is 100 light years away, you'd see ( with perfect zoom, of course ) a picture of the earth 200 years ago...?

I understand that we'd have to account for the movement of objects, of course, but with computers, seems like a small hurdle...

grahamj8 months ago

You don't need mirrors, you just need to get in front of the photons. A time machine or warp drive will do :)

Also the past is the only thing you can perceive, there effectively is no now.

densh8 months ago

Is there a science fiction universe that explores a hypothetical warp drive that lets you travel very far relatively quickly, but the travel is only possible with simultaneous backwards time travel that's proportionate to the distance traversed? So you can hop across star systems but can't do a roundtrip A -> B -> A without significantly shifting time from the point of view of A backwards (irreversibly from the point of view of the traveler).

+1
grahamj8 months ago
zzzr8 months ago

[dead]

steveoscaro8 months ago

Well that sounds like a good premise for a scifi book or movie.

IngoBlechschmid8 months ago
densh8 months ago

You should check out Three Body Problem (the book, not the mediocre netflix adaptation).

steveoscaro8 months ago

I love that book

Jun88 months ago

Watching this is ... hard to find the words to describe it. It's insane!

It shows us how mind bogglingly vast the universe is and how we're literally nothing compared to it. Paradoxically, it also makes me feel incredibly potent and capable as a human being in that being this small we can know so much!

Your size is to the distance of that distant spiral galaxy (420 Mly - 10e24m) as a neutrino is to you (effective cross section of a 1MeV neutron = 10e-24m: https://en.wikipedia.org/wiki/Orders_of_magnitude_(length))

kranner8 months ago

That we can know anything at all is a miracle in itself. It could have been just fine evolutionarily for us Earth creatures to be no more than Large Action Models with no inner experience, but somehow we ended up as these perceiving, cogitating, apprehending beings.

namaria8 months ago

Our existence and the universe being knowable is all intertwined.

A reverse entropy universe or a random one would preclude any meaningful learning, thus also the evolution of intelligence and technological civilization as well.

bbor8 months ago

How could you possibly be an affective agent without knowledge? And how could anything ever use knowledge without perceiving it? Whenever anyone talks about philosophical zombies, I say “show me one, then” — until then I’m sticking with (what I see as) the scientific consensus, which is that we’re material like literally everything else is in the Actual, perceivable world.

What would it be like to not be like anything?

kranner8 months ago

I'm also a materialist, and the lack of p-zombies here cannot preclude their existence elsewhere.

+1
bbor8 months ago
valval8 months ago

“So God created man in his own image, in the image of God he created him; male and female he created them.”

elteto8 months ago

How arrogant and silly to look at these incredible pictures and think “Yep, this was all made for ME. I am the center of the universe!”.

+2
protonbob8 months ago
+2
IAmGraydon8 months ago
seoulmetro8 months ago

>in that being this small we can know so much!

We only know what we think we know. We could just be grains of sand in someone else's world for all we know.

udev40968 months ago

"Meanwhile the Cosmos is rich beyond measure: the total number of stars in the universe is greater than all the grains of sand on all the beaches of the planet Earth."

- Carl Sagan

seoulmetro8 months ago

Yeah, but there are more atoms than grains of sand. We can still be grains of sand in someone's universe.

JKCalhoun8 months ago

Small and so brief too.

bamboozled8 months ago

we're literally nothing compared to it

Yet, here we are, made of it.

mr_mitm8 months ago

This is very exciting. I was part of the Euclid collaboration roughly ten years ago as a grad student. Finally we can see the fruits of the labor of the many scientists involved. The images are of course very exciting, but I'll be even more excited about the scientific results that will be released in the coming years.

dwayne_dibley8 months ago

I work with a lot of space engineers and it blows my tiny mind when they explain that they've got decades of wait from production to operations. Space truly is a collaborative effort.

bbor8 months ago

Really impressive work, thanks for sharing. The video, that is -- the astronomy is indistinguishable from magic and thus way beyond the reach of words like "impressive", obviously. I do find it a little funny that physics is in such a jam that "look at more stuff" is an important next step, but godspeed nonetheless.

ETA: For those who love space but are similarly OOTL on the specifics of modern missions: this is from a telescope launched to the L2 point (next to Webb!) last July, and is currently a bit over 1/6th of the way through it's expected lifetime.

Details here: https://www.esa.int/Science_Exploration/Space_Science/Euclid... and obv https://en.wikipedia.org/wiki/Euclid_%28spacecraft%29

In comparison to Webb, it's focused on ~visible light surveys of the medium to far range, whereas Webb was built for ~infrared investigations of very distant objects. It was budgeted around 1/4th the cost of Webb (and ended up being ~1/20th due to Webb's costs running from $1B to $10B...) See https://www.jameswebbdiscovery.com/other-missions/euclid/euc...

If you're looking for a new wallpaper, it would be hard to beat this 8000x8000 pic it took of the Perseus galaxy cluster, casually depicting 100,000 galaxies: https://en.wikipedia.org/wiki/Euclid_%28spacecraft%29#/media... The discoverer of galaxies, Kant, would literally weep. We're lucky to live when we do!

dylan6048 months ago

> I do find it a little funny that physics is in such a jam that "look at more stuff" is an important next step

Observation is the most basic step of science. By viewing, we can find evidence of theoretical concepts or see something that conflicts those theories so they can be discarded or tweaked. It's not like there are experiments that could be used to test theories, so observing is all there is

xipho8 months ago

Life on Earth is the same. If we are to get off Earth, we need to know what life to bring with us. We need to look a lot more, and much more closely at all the evolutionary products out there to make those decisions (if we arrogant humans can indeed even manage the intricacies of such an endeavor).

A_D_E_P_T8 months ago

I agree wholeheartedly with all of your sentiments, but I don't think that Kant discovered galaxies or had much interest in them. That honor goes to Messier or Hubble, I believe.

bbor8 months ago

That’s why I love this fun fact so much :) He spent a good deal of his life on natural science before turning to philosophy, not unlike Newton and Liebniz — he just happened to be way better at philosophy than science. It doesn’t help that Newton’s plan was alchemy-based, ofc.

Anyway, from Kant’s Wikipedia:

  In the Universal Natural History, Kant laid out the nebular hypothesis, in which he deduced that the Solar System had formed from a large cloud of gas, a nebula. Kant also correctly deduced that the Milky Way was a large disk of stars, which he theorized formed from a much larger spinning gas cloud. He further suggested that other distant "nebulae" might be other galaxies. These postulations opened new horizons for astronomy, for the first time extending it beyond the solar system to galactic and intergalactic realms. From then on, Kant turned increasingly to philosophical issues, although he continued to write on the sciences throughout his life
not2b8 months ago

Messier catalogued many objects, some of which were galaxies, but he did not know what they were. It was Hubble who first figured out (in the 1920s) that there were definitely separate galaxies.

https://lco.global/spacebook/galaxies/history-discovery/

seanhunter8 months ago

Absolutely astonishing. Thank you to everyone involved in this effort. It's completely mindboggling to think it's only 4 hundred years from Kepler deriving the equations of orbital motion to us being able to do this. Just stunning.

gorgoiler8 months ago

A fun thing I like to do every so often is to try to break away from the natural notion that space has a horizon and that instead force myself to feel that it continues equally in all directions.

We’re naturally inclined to be ok with giant distances on the horizon. It’s natural to put more emphasis on that part of the world. Hold up your thumb to the horizon and notice how many things fit alongside it compared to your thumb help downwards against the ground.

On the surface of our planet the up direction isn’t usually interesting and the down direction isn’t even there. It is therefore quite horrifying (“fun”) to imagine space going down forever.

bongodongobob8 months ago

Yes. I like to look at the moon and think of it as being "down" and I'm the one at an angle. Rather than "there's nothing under me, just the ground" it's "there's nothing under me, just nothing forever."

beAbU8 months ago

Many years ago I read some sci-fi novel, and in it was a sub-plot of a warring alien species that started destroying anything and everything they came across in their travels.

The story went that their local system was in some sort of a dust cloud, so they had no stars visible from their planet. At some point, that cloud somehow dissipated. On the planet, one of the inhabitants bothered to look up one night, and it hated everything it saw. So the race developed a space program to go out there and destroy it all.

For some reason I think it was Adams' H2G2, but the tone of my recollection does not quite feel on-brand for those stories. Not sure.

murrayhenson8 months ago

The end of Chapter 12 from Douglas Adams' Life, the Universe, and Everything.

The darkness of the cloud buffeted at the ship. Inside was the silence of history. Their historic mission was to find out if there was anything or anywhere on the other side of the sky, from which the wrecked spaceship could have come, another world maybe, strange and incomprehensible though this thought was to the enclosed minds of those who had lived beneath the sky of Krikkit.

History was gathering itself to deliver another blow.

Still the darkness thrummed at them, the blank enclosing darkness. It seemed closer and closer, thicker and thicker, heavier and heavier. And suddenly it was gone.

They flew out of the cloud.

They saw the staggering jewels of the night in their infinite dust and their minds sang with fear.

For a while they flew on, motionless against the starry sweep of the Galaxy, itself motionless against the infinite sweep of the Universe. And then they turned around.

"It'll have to go," the men of Krikkit said as they headed back for home.

On the way back, they sang a number of tuneful and reflective songs on the subjects of peace, justice, morality, culture, sport, family life and the obliteration of all other life forms.

beAbU8 months ago

Yes!! Thank you for the quote. My memory was clearly a bit off, but I got the gist of it right.

tirpen8 months ago

You are right, it is from h2g2.

It's the planet Krikkit, which is a major part of Life, The Universe and Everything, the third book in the series.

bikamonki8 months ago

So many solar systems out there, life evolved in many planets for sure. No proof but no doubt.

ants_everywhere8 months ago

"But where is everybody?" [0]

[0] https://en.wikipedia.org/wiki/Fermi_paradox

SoftTalker8 months ago

They are all wondering the same thing. Distances are so vast that the overwhelming probablity is that we'll just never notice each other.

gwd8 months ago

How long did it take modern humans to completely colonize Earth, such that there are few places you can go on Earth and not meet any humans? Less than 10k years for sure.

If we become a space-faring civilization, how long will it take us to colonize the galaxy, such that there are few places you can go and not find evidence of humans around? Not more than a million years or so.

So if intelligent life -- capable of becoming a space-faring civilization -- is common, why is the galaxy not colonized already?

Kursgesagt has a good video on this: https://www.youtube.com/watch?v=UjtOGPJ0URM

SoftTalker8 months ago

> how long will it take us to colonize the galaxy

The Milky Way is 100,000 light-years across. So at least that long assuming we can ever attain near-light-speed travel (unlikely). And due to cosmic inflation, many other galaxies are receeding at faster than light speed, so we could never get there.

There could be a lot of intelligent life (as intelligent as us, maybe more so) that can never realistically travel beyond their local star systems, and we'd never notice them.

wongarsu8 months ago

Earth has had lifeforms for about 90% of its existence. Earth has existed for 33% of the age of the universe. The time it took organisms from Earth from the earliest lifeforms to discovering space travel amounts to 30% of all time was available in this universe.

Sure, it's easy to imagine someone doing it a million years faster than us. But at the same time it's very likely we are just early to the party.

noisy_boy8 months ago

> So if intelligent life -- capable of becoming a space-faring civilization -- is common

Maybe it doesn't have to be common; incredibly rare is totally fine when your multiplier is the entire universe.

darkwater8 months ago

These ideas (just like the "dark forest" concept by Liu Cixin) are based on the fact that every intelligent specie out there is driven exactly by the same instincts as ours. It can be, but you cannot be certain until you meet them. Also, meeting other species might take millions of years, so at every effect we would be safe for a loooong time anyway.

ySteeK8 months ago

Not "where"... they are "there"...

But "when" they are?

shiroiushi8 months ago

No, there's only one solar system in the entire universe. There's countless star systems though, but only one of those stars is named Sol.

/pedant

thfuran8 months ago

You can't know that there's only one named sol by the locals.

Yeul8 months ago

One day we'll be sued by aliens for trademark infringement.

skibz8 months ago

We live in what's known as a planetary system. Star systems involve only stars.

WhitneyLand8 months ago

If that’s where we’re going I’ll try to pedant-raise you.

Assuming the cosmological principle is true and the universe is infinite, wouldn’t we be guaranteed an infinite number of Sols? ;)

patrickmcnamara8 months ago

Do people actually call the Sun "Sol"? I thought that was more of a video game thing.

shiroiushi8 months ago

The Romance languages use that name (or something very closely related). English uses "Sun", but just as it borrows a ton of stuff from Latin/French/etc., it also borrows "Sol" for its word "solar".

Also, Captain Archer in Enterprise used the name Sol when making contact with aliens.

wongarsu8 months ago

And in Germanic mythology the personification of the sun is Sól.

In PIE it's sunnōn. In some languages that evolved to some variation of sun or son, in some to became sol (notably Latin). And many use both variations in some capacity

fimdomeio8 months ago

If you speak Portuguese or Spanish, yes.

Quekid58 months ago

I can't think of any English-speaking places that do... but you see it used in "solar", for example.

sph8 months ago

Latins and medieval scientists did. In Italian we call it "Sole".

konart8 months ago

It's Солнце (Solntse) in Russian.

tomrod8 months ago

We have proof. Us.

wyldfire8 months ago

The posit was "life evolved in many planets for sure" but your evidence is "us"?

tomrod8 months ago

We are a necessary but insufficient part of the proof of life. One cannot say "no proof" when necessary proof has been achieved. All that remains is a second example -- the first took several billion years to achieve self awareness.

Like they say, the first million is the hardest.

+1
nashashmi8 months ago
beAbU8 months ago

"No proof but no doubt" is such a great way to put it.

pbhjpbhj8 months ago

"It" being pure anti-scientific belief?

pbhjpbhj8 months ago

What religion do you consider that to be? It's a widely expressed belief, but I don't think I know the name of it.

dev1ycan8 months ago

I mean there is a very non 0 chance that Europa (moon) itself has life in it, it might not be more than very basic life, but there is a non zero chance that it does have it.

ekianjo8 months ago

Life? Probably. Something that has thinking capabilities? Much more doubtful.

bigiain8 months ago

> Something that has thinking capabilities?

Something that involves "thinking capabilities" in a form we would recognise?

That's always what I consider when someone mentions the Fermi Paradox.

Humans tend to barely recognise "thinking capabilities" in other mammals. There is intriguing evidence that plants "communicate" and "remember", and have been doing so around us for at least as long as mammals have existed with humans barely noticing and usually ignoring or criticising researchers who suggest that perhaps plants may be "thinking".

https://www.botanicalmind.online/podcasts/plant-sentience-a-...

If we don't even recognise "thinking capabilities" in the plants that have been around us for as long as we've been around as a species, what're the chances that we would notice and recognise "conclusive evidence of advanced extraterrestrial life" when we saw it?

gorgoiler8 months ago

What is the probability that two raindrops land at the same time?

It is pitch dark. Could one raindrop survive long enough to at least hear the sound of another landing before it disintegrates?

Is the time between the drop striking the plane and the drop smashing apart so short that no drop ever hears another, or even sees evidence that any drop other than itself ever existed?

deanCommie8 months ago

I see no reason to doubt.

I think at the scale of the universe life even thinking capabilities life is almost certainly inevitable.

What's not inevitable is that it can thrive, and survive to a galactic scale. That's not even yet certain for us.

Universe is too big, we're all too far apart. Civilizations come, civilizations go. Some may not be on a planet where even rocket travel may be possible - no source of energy dense enough. Some can get wiped out by disasters. Asteroids. It's happened on this planet a bunch of times.

It's like the Birthday paradox. It's likely 2 people have the same birthday. It's not likely that someone else has YOUR birthday.

bigiain8 months ago

> What's not inevitable is that it can thrive, and survive to a galactic scale. That's not even yet certain for us.

Sadly, that's looking less and less likely as time goes on.

deanCommie8 months ago

See even here there's no reason to be this doomery.

Yes, climate change is a massive problem, and humanity is ignoring it to our own peril.

But peril here means the unnecessary deaths and displacement of hundreds of millions of people - a civilization-defining tragedy no doubt, but ultimately nothing so serious as to cause our extinction.

We have the technology and knowledge to adapt, change course, finally get of fossil fuels, and enter into a new age of sustainable renewable energy.

We're gonna do it too late, and whole ecosystems, species, and far too many humans are all going to perish. Sea life may become extinct.

But at no point is our survival as a SPECIES in question.

colordrops8 months ago

Trying not to be negative, but statements like this completely disregard the degree of thought and evidence that needs to be accounted for to make a reasonable statement that isn't just pulling an ungrounded opinion out of the air. I mean why exactly is it doubtful? It doesn't seem doubtful to many other very intelligent people, so perhaps you should back it up with a bit of reasoning or evidence.

6stringronin8 months ago

So you're saying out of the trillions upon trillions of stars that the chances are no life can think but us?

I think the odds are that at least one of them does.

mcmoor8 months ago

We're multiplying a very large number (number of planets) with a very small number (chance of intelligent life). The margin can make the answer go either way.

+1
colordrops8 months ago
+1
lnenad8 months ago
thomassmith658 months ago

There may be countless other planets with intelligent life right now, but... if it took them millions of years to evolve... and they're millions of lightyears away... we might have to wait millions of years for signals to reach Earth from the eldest civilizations in the closest galaxies.

+1
spartanatreyu8 months ago
creativenolo8 months ago

Given the timescales involved and brevity planetary conditions perhaps life is unlikely to observed nearby a star system.

Perhaps instead it is to be observed in energy preserving vessels (i.e. emit nothing) in transit to the next fuel stop (a planetary system). Perhaps dark matter can be explained by the congested highway of these unobservable vessels.

rvnx8 months ago

It depends what you call Life.

If it is a machine that can reproduce itself, growth, collect energy, use energy, do actions based on events, etc, then animals match this profile (perhaps even plants), and also, at some point computer will probably reach that goal.

Despite that, computers won't have a "soul", so where this soul comes from is a big mystery.

I'm not even sure that two humans can prove with certainty that the other ones has a soul, this is still an unsolved problem.

ChocolateGod8 months ago

Unless the "soul" or the feeling of self is a property of the universe itself and could apply to computers given enough computer power and "free will".

m3kw98 months ago

One proof is that we are thinking, and so are dogs, cats and monkeys to a lesser extent.

ekianjo8 months ago

That's Earth. There is no model to say that life always goes on that way. We just have no clue.

+3
virtue38 months ago
kjkjadksj8 months ago

And thats just how life on earth happened to iterate in recent terms. For most of the history of life on earth, it was unicellular. It could have just as easily remained a planet of unicellular life for another few billion years if it weren’t for a few chance mutations that happened to be slightly more competitive over the background.

+1
caust1c8 months ago
m3kw98 months ago

I think you fail to see the sheer probability just from the number of galaxies and the timeline itself where life can form and extinguish in even few million years. Every planet in the universe gets various amount of tries over eons

anigbrowl8 months ago

FOH with that solipsistic nonsense

Wir mussen wissen. Wir werden wissen.

kjkjadksj8 months ago

That’s hardly proof considering these examples all share a common ancestor. I ask you, can you communicate with a slime mold? Even the slime mold is more similar to ourselves than any potential life we’d find elsewhere, as we share a common ancestor.

+2
colordrops8 months ago
kjkjadksj8 months ago

I agree. There is a huge bias in our culture that we imagine a human supremacy. We are the top of the food chain we think. The masters of our world we argue, despite simple bacteria being superior in all environments compared to fragile sickly humans. We not only assume that aliens would think like us, we think they would even look like us with more or less the same body plan. We think they would have the same cultural sensibilites of exploration aboard a ship, of making treaties and even sharing technology. Even in this thread you get pushback from replies and downvotes from people who are almost offended that this would not be the case.

If you ever study evolution on the other hand, you would realize how fantastical these assumptions all are. No, life elsewhere if anything is far more likely to look like how it did for most of the history of life on earth: unicellular. People forget that even multicellularity, let alone an organism with an entire bodyplan, emerged from pure chance, and could have easily been wiped out or outcompeted for resources as soon as it came if it didn’t have sufficient fitness. How lucky it was for us that our ancient eukaryotic ancestors enveloped that first mitochondria. How different life would look today if that never happened and we never had such an energy source to actually support these later iterations, considering all life that exists today are directly descended from this single line. How supremely unlikely it all is to tread even close to the same path. How many potential paths are lost along the way and how many paths only emerged as a result of previous paths.

alok-g8 months ago

>> No proof but no doubt.

There's still doubt:

https://en.wikipedia.org/wiki/Drake_equation#Range_of_result...

slekker8 months ago

What we know about mathematics can't prove or disprove things we simply don't have any idea of. Think as if other beings would live in a different frequency plane (outside of our 3 spacial + 1 time), our instruments and theorems can't detect that.

alok-g8 months ago

That's right. But it does create doubt.

To prove, we would need to find such life.

To not have doubt, we need to have a reasonably high confidence that such life is there. However, the estimates are so wild and range from very unlikely to no-doubt. Thus, there is doubt (to the best we understand).

dwayne_dibley8 months ago

ISn't the doubt simply the 'when' rather than the 'if'?

alok-g8 months ago

If you read through the link, the estimation for.probability of finding life elsewhere ranges from practically none to very high. When the former is also a.part of that range, could it not be that we actually do not have life anywhere else? I think it's not a question of when or a 'no doubt' case. We simply do not know enough.

If the calculations were to say there's very high chances of the universe teeming with life at many places, but life is not 'found' yet, then I would say it like 'no proof but no doubt'.

thierrydamiba8 months ago

Fun to imagine someone or something out there mapping us as well. What a cool video. I think one of the best things about space travel will be the loss of ego we go through when we really understand how vast the world is.

jawilson28 months ago

Douglas Adams keeps coming up in this thread, but this sounds a lot like the Total Perspective Vortex.

thierrydamiba8 months ago

Can you elaborate on this?

taptak8 months ago

The Total Perspective Vortex was a machine built with the intention of showing beings the infinity of creation, which became used as a method of torture.

thierrydamiba8 months ago

Oh that’s not ideal

vasco8 months ago

Humans are great at turning a new insight into a way to feel better about themselves compared to others that haven't had the insight. We are driven by our ego, so I find that very unlikely.

gukov8 months ago

Apparently psychedelics can cause the so called ego death. I wonder if it’s the same driving force: a realization of how vast and limitless the world is.

thierrydamiba8 months ago

That effect is temporary, but yeah you can get there. In my experience psychedelic users are some of the most egotistical people on earth. The cycle they live in is a nasty cage.

mmooss8 months ago

That was said when we first orbited the Earth. Right now many things - space travel in particular - seems correlated with vastly increased ego.

PUSH_AX8 months ago

We’re so lucky to exist in a time where everything is so close together, as absurd as that sounds.

There will come a time when a civilisation will look up and see only darkness, due to the expansion of the universe.

sva_8 months ago

It is not clear to me that the conditions of the universe at that point of increased entropy would be able to support life

bilekas8 months ago

Eventually there won’t be any life given no stellar body will be in range of a star to support life I guess?

PUSH_AX8 months ago

I’m assuming gravity will keep solar systems together? But admittedly know little about it.

Sander_Marechal8 months ago
zuminator8 months ago

To think that it's only been a touch over 100 years that we've even had confirmation that other galaxies besides our own exist.

Prior to that it was thought that the entire visible universe was around 100,000 parsecs across (what we know now to be just the Milky Way.)

FredPret8 months ago

I'm confused by how much matter there is. Are those dots entire galaxies? It's just nuts. Thank you team Euclid.

Maken8 months ago

It is more puzzling how much emptiness there is. Everything we see in these images is absurdly far from each other.

ur-whale8 months ago

I wish there was a standardized way to let folks who run a website such as this one know how much a casual passer-by viewer enjoys the byproduct of their work.

miunau8 months ago

If you're in the EU (particularly Germany, France and Italy, who are the three largest funders), you can let your representatives know you appreciate ESA's work.

runj__8 months ago

Thank you for reminding me! Just sent a couple of emails to my representatives!

arlort8 months ago

Esa has social media accounts, pretty sure some intern will see if you ping them, I don't imagine they get much traffic

dylan6048 months ago

You used to be able to sign a guestbook

nhumrich8 months ago

There is. It's called dwell-time

ur-whale8 months ago

You might be staying there a long time because you're fuming, so: nope.

MobiusHorizons8 months ago

You are of course right that there are lots of potential motivations for spending extra time on the page. But it will likely be interpreted as enjoyment in the absence of other feedback mechanisms.

blinding-streak8 months ago

Euclid is stationed at L2. I like to think it grabs a drink at the end of the day with other satellites out there like James Webb and Gaia. They discuss the day's discoveries.

alchemist1e98 months ago

How big approximately is this L2 for practical purposes? Sounds like it will be valuable space-estate one day.

mr_mitm8 months ago

Euclid is in orbit around L2 with a radius of around 1.5 million km (~1 million miles), so the spacecrafts are quite comfortable there.

6stringronin8 months ago

Truly amazing what a gift to humanity. Inspiring to see such a wonderful zoom on a deep filed like image. Bravo to the ESA.

geenkeuse8 months ago

We still have a long way to go to beat this draw distance, but we are on our way. The day will come when we have "sentient" beings, living in a massive world created by us. And they will ponder the same things as we do now.

And we will remain invisible and out of reach, but completely observant, and influential in their world. After all, we wrote the program.

And they will study the code and discover their own "natural laws" and invent their own things.

And they will progress until they create a completely simulated world of their own.

I wonder at which level are we. How many sims down from the original program...

sph8 months ago

You would enjoy the short story "The Last Question" by Asimov: https://users.ece.cmu.edu/~gamvrosi/thelastq.html

__turbobrew__8 months ago

The more I learn about physics the more I am convinced this is a simulation.

In a way our universe is very lazy, at large scales where consciousness exists the universe is coherent, predictable. The smaller you get the lazier and fuzzier the universe gets to save computational work. The actual state of things is only computed on small scales when you measure them. The speed of light puts limits on how far humanity can travel to extend the bounds of the simulation. Maybe the expansion of the universe is yet another hedge at limiting how far human can travel. Also, as things are red shifted due to expansion you can run the simulation of far away places slower due to time dilation.

The speed of light and the plank length are both hard codes to bound computational work. The plank length to bound computation getting too complex in the micro scale and the speed of light to limit computation in the macro scale.

It is also very convenient that the closer we look at things the more we see that under the hood things are discrete which is very convenient for simulating.

Maybe every level of the sim increases the plank length and decreases the speed of light in order to deal with inefficiency of doing a sim within a sim? Maybe at the final level of the sim we end up with the truman show.

ffwd8 months ago

This is an interesting idea but personally I think the opposite - the universe is not lazy and all details matter at all levels.

Like imagine making a complete account of all world views of all people in all of history - all perspectives, and all the physical events of that history. There is almost infinite detail there. In a way, in the universe all the details of all the things matter, including at the physical level, otherwise you wouldn't get the diversity and complexity you get now.

dnate8 months ago

There are a lot of ways the illusion of more detail than there actually is is given. Simulation cost saving measures so to say.

E.g.: Detail in memory fades quite quickly. Vision is not as detailed as we think.

adamredwoods8 months ago

Or the universe is so massive that a human mind cannot ever comprehend the magnitude of it all, so in order to cope, a human mind must use a definition it feels comfortable with.

smaddox8 months ago

Exponential slowdowns at each level ruin this hypothesis.

geenkeuse8 months ago

The documents I copied are not as sharp as the original, so the photocopier must not exist.

smaddox8 months ago

Photocopying has little to do with simulation of the physical world.

First of all, Bits != Q-bits. You can clone bits. You can't clone Q-bits: https://en.m.wikipedia.org/wiki/No-cloning_theorem

Second, photocopies are static. The physical world is not static.

+1
TrapLord_Rhodo8 months ago
turnsout8 months ago

What benefit do you get from this line of thought? You could also be a brain in a jar. What would you change about your life or behavior?

dr_kiszonka8 months ago

It's fun to think for the sake of thinking.

geenkeuse8 months ago

But I'm not a brain in a jar. That is not my experience.

The benefit I get is knowing that this is not all one "big bang"

We are so quick to laud our own achievements, but fail to give credit where it is due.

We build nuclear power plants, waste water treatment plants and the beginnings of quantum computers. And we congratulate ourselves for a job well done, after spending an unspeakable amount of resources on them. We maintain them with a constant labour force, regular maintenance shutdowns and a ton of money.

Meanwhile the sun keeps shining, the clouds keep raining and your mind keeps minding.

And they do it on zero budget. No off days. No staff. Automatically.

And with all this engagement, the energy remains the same.

lfmunoz48 months ago

600x zoom didn't seem to help from the 150x zoom. Wonder if we will ever be able to see actual planet surfaces or we need some other technology to do that, i.e, we should have small satellites every 10 light years. but this map is amazing and a good step forward.

Edit: Was just thinking that image does us tells us something i.e, there no large artificial structures or billboards anywhere we can see. Maybe I watch too much sci-fi but honestly would have expected someone to build some huge structure around a star or planet, would be disappointing if no one does.

zamadatix8 months ago

For comparison's sake, this is the best image we made of Pluto (~0.0006 light years away) prior to sending a spacecraft right past it https://upload.wikimedia.org/wikipedia/commons/a/a9/Pluto_an... and this is an image of what we think might be a gas giant 4 light years away https://upload.wikimedia.org/wikipedia/commons/a/a3/Candidat...

bigiain8 months ago

> there no large artificial structures or billboards anywhere we can see.

I half suspect the aliens who can construct structures large enough to see from lightyears away are by far most likely to be building Dyson Spheres around stars which make them significantly less likely to be seen rather than something we'd notice.

r2_pilot8 months ago

>building Dyson Spheres around stars which make them significantly less likely to be seen rather than something we'd notice.

There's no stealth in space; Dyson spheres would be anomalously infrared/lower frequencies.

stouset8 months ago

There is zero way to optically resolve an exoplanet’s surface without something like a gravitational lens.

xpl8 months ago

Can't we build a giant optical interferometer in space by sending multiple telescopes out there?

mlyle8 months ago

Possibly, but the challenges to do so are immense. Using the sun as a giant gravitational lens seems much more tractable.

+3
cvoss8 months ago
frabjoused8 months ago

If light is hitting it, can you explain why not?

thrtythreeforty8 months ago

The naïve optical instrument will be diffraction limited. The resolving power of a lens, basically how "sharp" the resulting image will be, goes down as you decrease the size of the aperture relative to the focal length (that is, as the f-stop number goes up).

A telescope that could zoom into an exoplanet would have an f value of a kajillion or so.

+1
stouset8 months ago
recursive8 months ago

I don't know much about it, but my guess is that 0* photons from that planet make their way into any given telescope lens in a given day.

kibwen8 months ago

What proportion of the stars in this survey have been given names (even just gibberish identifiers)? Are there too many for even astronomers to care to bother cataloguing?

bbor8 months ago

As another comment says we have a naming system for the Milky Way, but I believe the point of looking above and below the Milky Way is to explicitly find galaxies (/intergalactic forms), not stars. There’s commentary on stuff like supermassive black holes at the center of other galaxies, but AFAIK as an amateur, it’s not feasible to study individual stars in other galaxies, so we have no need to name the vast majority of them.

It’s basically impossible to grasp what looking at a hundred thousand galaxies means, and that’s just a small section. It’s literally beyond human comprehension.

  In October 2016, deep-field images from the Hubble Space Telescope suggested that there are about 2 trillion galaxies in the observable universe, or about 10 times more galaxies than previously suggested, according to the journal Nature. In an email with Live Science, lead author Christopher Conselice, a professor of astrophysics at the University of Nottingham in the United Kingdom, said there were about 100 million stars in the average galaxy. 
Which comes out around 10^24, and even that’s “likely an underestimation”. The earth’s surface area is 10^8 km^2, so naming all the stars would be like naming every spot in an imaginary grid of 0.01mm^2 (!!!) squares covering the whole earth.

Sorry for the rant, I don’t get to do any dimensional analysis in my work and miss it from HS chemistry, lol. This kinda stuff makes me want to be a flat earther…

DrBazza8 months ago

Most Milky Way stars have been catalogued (to some luminosity/visibility). Wikipedia to the rescue (almost...): https://en.wikipedia.org/wiki/Star_catalogue#Gaia_catalogues

7275647970697068 months ago

Holy mother of god, this is gorgeous!

It is absolutely incomprehensible how _vast_ the Universe is.

I can only hope one day I'll be reborn as a lifeform who can bend time and space to explore it all.

micromacrofoot8 months ago

I can never truly wrap my head around the time component here, this is 400+ million year old light! in earth terms, that's when most life was still ocean-bound

salesynerd8 months ago

Very impressive collage of images! Just one doubt - what are the pitch black patches?

meowster8 months ago

Aliens, but it's classified, so they redacted those parts.

salesynerd8 months ago

The geometric, sharp, shapes suggest these aliens are "stealth" ones. :)

laweijfmvo8 months ago

usually a star in the foreground, or, aliens

biggestlou8 months ago

I’m still loooking for intelligent life on this planet!

ordu8 months ago

Can't you pass a mirror test and see yourself in the mirror? It is pretty good evidence for me, that intelligent life exists on this planet.

sagebird8 months ago

I can intellectualize

But I cannot truly physically believe how much there is here in our universe.

It’s one thing to see zooming out animated diagrams

It’s a whole other thing to see these photos.

Imagine having a mind capable of holding every planet in every galaxy as familiar as we know our own.

ourmandave8 months ago

The mosaic contains 260 observations made between 25 March and 8 April 2024. In just two weeks, Euclid covered 132 square degrees of the Southern Sky in pristine detail, more than 500 times the area of the full Moon.

This mosaic accounts for 1% of the wide survey that Euclid will capture over six years. During this survey, the telescope observes the shapes, distances and motions of billions of galaxies out to 10 billion light-years. By doing this, it will create the largest cosmic 3D map ever made.

So my question is, what comes after Euclid?

Will the next one capture better details further out (if further is possible)?

Kind of like James Webb compared to Hubble.

amatecha8 months ago

Since it's apparently a 3d map (?) I'd be curious if they will re-run the scan and compare between the scans? Pure speculation my part, but that would be pretty interesting, surely.

spartanatreyu8 months ago

You're not going to see like galaxies moving, only very very close stars.

But you would spot transient phenomena like supernovae.

amatecha8 months ago

Yeah, I was pondering just how long of a time delta you'd need/want to actually show a meaningful difference... Probably at least as long as the lifetime of the Euclid spacecraft...

Tepix8 months ago

Well, there's the Vera Rubin Observatory with the LSST which will provide us with an exciting dynamic map of the sky.

leokennis8 months ago

I know next to nothing about “space” but pfeeeew that zoom-out at the end…wow.

taylorius8 months ago

They've gone and created Douglas Adams' Total Perspective Vortex

irjustin8 months ago

Man I REALLY hope we solve Dark Energy/Matter in my lifetime. That'd be so cool. I put it up there with long term habitation on another world (moon or mars is fine to me!).

openrisk8 months ago

my God! it's full of stars! [1] I can't help but think that living and evolving under a starry sky has had a deep impact on our reptile brains and the process is still ongoing. First it was the simple act of looking up to a mysterious, clean and regular clockwork unfolding in the heavens. The fortuitous match of eye structure, atmospheric transparency to certain wavelengths etc. that created a permanent mental stimulus that was complex yet not beyond grasp. Astronomy and the development of Mathematics were closely intertwined in the dawn of civilization [2]. Then it was the invention of the telescope [3], one of our first sensory-extension devices, that marked the beginning of the modern science and technology era. Culminating into the satellite era (detached "eyes" lifted into low-Earth orbits) and the incredible ESA projects like Euclid (looking out at the furtherst reaches of space) and Copernicus [4] (looking back at us and our predicament). It does feel that the process of learning about the universe and our place within it is still in full swing. It is still a great time to be alive!

Small quibble: Credits for the soundtrack are missing.

[1] https://en.wikipedia.org/wiki/Interpretations_of_2001%3A_A_S...

[2] https://en.wikipedia.org/wiki/Archaeoastronomy

[3] https://en.wikipedia.org/wiki/History_of_the_telescope

[4] https://www.copernicus.eu/en/about-copernicus/infrastructure...

teleforce8 months ago

Anybody know what's data management system that's being used for the expected 100 PB observation data collected during the six years EUCLID project, is there any chance it's RUCIO?

https://rucio.cern.ch/

standardUser8 months ago

Every speck of light that doesn't have the 'flare' of a nearby star is not a star, but another galaxy. Sure, the one particularly detailed galaxy they zoomed in on looks cool. But the way they present this is missing the forest for the trees.

maxehmookau8 months ago

That's quite a big existential crisis for so early on a Tuesday. Cool as heck though.

netsharc8 months ago
hi_hi8 months ago

The other mind boggling part is, we've gone from having a limited, accurate, map of only our immediate solar system, to _this_ in ~270 years.

What knowledge of our universe is hiding behind future technology evolutions?

cadamsau8 months ago

Thanks to whoever linked directly to the video! It’s so refreshing when you go straight to the action - like that one time you went to the movies and the movie.. just, started.

Beautiful scenes!

qingcharles8 months ago

YouTube link for the same video:

https://www.youtube.com/watch?v=86ZCsUfgLRQ

apercu8 months ago

Those blacked out areas are totally aliens.

lpasselin8 months ago

Do the captured elements move a lot during this snapshot? since it will take months? Is the difference significant?

sbierwagen8 months ago

Parallax shift from the spacecraft moving along its orbit isn't measurable past 16,000 light years. The Milky Way is about 100,000 light years in diameter, so for most of the stars in our galaxy, let alone extragalactic objects, there's no effect.

For closer objects this shift is useful, as it's the only way to directly measure the distance to a object: https://en.wikipedia.org/wiki/Parallax_in_astronomy Every other method for estimating distances to astronomical objects (standard candles, redshift, etc) are based on parallax measurements.

gigatexal8 months ago

Does anyone know what the music was in the background? Was it random for the video or a known piece?

Rugu168 months ago

This is just so incredibly beautiful

davidwritesbugs8 months ago

I look at this and think "Huh, maybe I'm not the biggest deal there is."

theelous38 months ago

If we're alone in the universe, I'll eat my one and only hat.

rq18 months ago

What's the data link between the telescope and the ground ?

00000z8 months ago

I dont know whats out there but holy fuck this is amazing

tobias_irmer8 months ago

I couldn't have put it any better.

k3vinw8 months ago

If only we had a spore drive powered by tardigrades…

blendertom8 months ago

Beautiful!

We're just a speck of dust inside a giant's eye

sensanaty8 months ago

I'm sure it's not a unique experience in any way, but thinking about space and the universe fills me with a weird and overwhelming... Dread? I don't know how to word it, but it feels terrifying thinking about the scale of it all, the numbers involved. So many galaxies, stars, planets. It feels like we have no hope whatsoever of ever seeing anything other than our little comfy nook we have here in our little solar system, and even then the scale involved is just incomprehensible.

I'm always speechless when I see these. Simply mind boggling

ramijames8 months ago

I'm so excited for this!

ddingus8 months ago

Damn it is an awful big place!

dsmurrell8 months ago

What is that bright patch?

rambojohnson8 months ago

where's the thing to zoom into? it's just an mp4...

martin828 months ago

Imagine if humanity, instead of doomscrolling on Twitter and looking at yoga pants on Instagram and TikTok, would look at stuff like this all the time, and constantly make it more acessible and exciting via creative web apps...

roymurdock8 months ago

awesome. thanks for sharing

veunes8 months ago

"When I look at the night sky, I know we’re just a small part of a vast universe"

zzzbra8 months ago

what is this 2002? Being immediately assailed by sound when clicking a link is not a pleasant experience.

agomez3148 months ago

Can somebody add some GenAI to this to smoothen things out when it zooms in as well as add in some "parallax" effect so that it looks like we go past the closer galaxies to the further ones?