The Universe Is Expanding Faster Than Light?

The universe appears to be expanding faster than light. But is this breaking the physics we know? Find the answer in the video.
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A Cosmoknowledge production.
Narrated by:
Russell Archey
www.ravonmedia.com/
Graphics:
NASA/Goddard Space Flight Center Conceptual Image Lab
ESO/L. Calçada
Space Engine
Martin Kornmesser, Luis Calcada, ESA/Hubble
NASAJPL Edu
M. Alvarez (www.cita.utoronto.ca/~malvarez), R. Kaehler, and T. Abel
vecteezy.com
envato.com
Music:
Olexandr Ignatov - Dramatic Strings
Orchestralis - Suspenseful Pulsing
envato.com
A big thank you to our lovely channel members:
Joseph Pacchetti
john roberts
James
Ali Rıza Şeren
Francois Hattingh
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Cosmoknowledge brings news from space.
We love you, explorers!

[@TheXenderful]

The analogies used are so wonderful. The stretching balloon to explain the growth and the chasing of a wave to explain the increasing distance

[@Cosmoknowledge]

I'm glad to hear that. Thank you so much!

[@mimikurtz2162]

The stretching balloon illustrates the expansion but does not indicate anything faster than light, The chasing of a wave analogy doesn't fit. It's like two cars on a road, one going 30 mph and the other going 40 mph. The slow one will never pass the faster one but it has nothing to do with expansion, relativity, the speed of light or ANY physics.

[@josephpacchetti5997]

This is a great explanation of how the Universe/Universes and the space they are in is expanding, I recently watched a video of how quantum computers work, however, It's in It's infancy, some day they may help us understand more about the Cosmos, Thank you Ardit and Russ, and of course the entire crew that make this channel so great. 👍 🇺🇸

[@Cosmoknowledge]

Thank you, Joseph. Thanks so much for making the environment here so warm with the kind words. ✌️🚀

[@chimpinabowtie6913]

3:43 A better analogy is swimming against the stream in a fast-flowing river, being swept further downstream all the time no matter how fast you can swim.

[@Cosmoknowledge]

Interesting.

[@graceannamaria]

excellent video, really insightful!! i love learning about space😊😊

[@stacielivinthedream8510]

Me too! It's fascinating!

[@Cosmoknowledge]

Thank you ❤️

[@AfsanaAmerica]

Fantastic video explaining the universe expanding faster than the speed of light!

[@BillyCollins-tf2xn]

I'm confused so the universe expanding is basically empty space exspanding?

[@atiqrahman7289]

It is said that expansion in between galaxies is ocurring with a very high speed ---- but how the heck space inbetween galaxies can be more than speed of light. If expansion of space in between galaxies is occurring so rapidly , how we can even see the galaxies?

[@maxialmas4502]

have a presentation soon, I am screwed

[@ankushptdr]

Bro is making cinema level videos but still underrated . keep it up bro you will go so up !

[@Cosmoknowledge]

Thank you much appreciated! ❤️

[@mrdeathgaming1457]

I thought that.................................

[@Skyler744]

Wow! I can't believe I'm this early to a Cosmoknowledge video! Love your guy's content! Keep up the good work! ^_^

[@Cosmoknowledge]

Thank you for the kind words. ❤️

[@Skyler744]

@@Cosmoknowledge Can you guys do a video on certain exoplanets like Teegarden-B or on some stars like Barnard's Star or other closeby star systems?

[@ewutermohlen]

I'm not sure if there's theories like this out there. But combining the gist of relativity and the notion to think outside the box(outside the universe). We see an explosion as something that goes from 1 point going outwards. Where the force is generated from the inside. And many assume the big bang does the same. What if instead of the force going outwards, there's an outward force pulling our universe appart or rather it's a matter of perspective like space+time and electro+magnetism. This could explain the rate of expansion of our universe. Similar to when you pull appart sticky substance when dense packed together its easy to pull, but once it becomes tensile you'll feel resistance. Keep going and the substance breaks apartcreating a web like structure with empty pockets, similar when you look at the pattern of galaxy clusters. Pulled appart it becomes easier and easier to pull even further appart. Ofcourse this metaphore is 4 dimensional, but the pulling force of our universe is outside our dimensions. This force might well be the dark energy we're looking for. And this could also explain dark matter something that doesn't fully interact with normal matter but it does affect the dimensions of spacetime. To me this seems like a very plausible explanation to what we know so far about our universe. Which means that we should start looking outside our universe to find the answers we're looking for.

[@siotibi827]

Very good. These cosmic scales and velocities are ridiculous. Considering the smallest possible size of the universe, with the minimum figure of uniform expansion compounded over a diameter of 7 trillion light-years, the rate of recession of one end relative to the other would be around 480 times the speed of light. From a perspective of that hypothetical reference point even light is far surpassing its own speed.

[@rewar5870]

Ok , then please please someone make a explanation on what "space" is , getting tired of hearing about how it expands , contracts , curls in on itself thats all fine , but what the hell is it ?

[@herskie45]

Do we have any data that presents that big bang happens everywhere?

[@apollo5341]

In an exponentially expanding space-time universe faster than light expansion relative to the inverse exponential would still be the same as the local speed of light, due to relativity. Because time may speed up relative to a lower space-time-gravity density, relative to the space-time density of the time of the post inflationary big bang, when there would have been a high space-time gravitational density, and therefore time and light would have been slower.

[@azertu2u2]

Its going in different directions at over 50% speed of light

[@mimikurtz2162]

No, it's not. Nothing is going in any direction; it's just expanding.

[@VersusARCH]

If the redshift of farther cosmic objects is greater than the redshift of closer objects - wouldn't that mean that the rate of the expansion of universe in DECELERATING - since that light began its jorney to us long before the light of the objects closer to us?

[@d.warrenstiles]

The space is expanding faster than the speed of light but the individual objects are not exceeding the speed of light speed limit. An important distinction.

[@mimikurtz2162]

But nobody has ever shown that space is expanding faster than the speed of light. It's fiction.

[@user-gr3oo5ux9x]

What can not be dreamt about? there is nothing out there that actually exist.we are that which infinite that plays all roles,is always incarnating

[@timothy8426]

Heat singularities are the cosmic speed limit in resistance. Dark energy is expelled force of heat energy singularities as waves from decaying stars. Light is only present in resistance to mass. Heat imagining. Sparks of electrons or lights as renewable singularities energy in chain reactions until resistance is overcome by open space itself. Heat waves distort imagining in some cases. Dark energy is singularities outside of entanglement of mass as heat waves of decay from stars as singularities of thermaldynamics singularities passing through space and mass as renewable energy exchanging singularities in chain reactions until resistance is overcome by open space. Heat waves are expelled by stars decaying atmospheres as singularities of heat. Electricity is rapid heat loss as current. Theoretically factual probability that works with quantum physics.

[@seanmcdonough8815]

I've heard the universe could be or is estimated to be at least 512 times bigger than our observable horizon, but how does the math of of expansion in reverse prove this? I mean, what would be in one spot (plank scale length) 13.78 billion ya, what we observe? 512 times what we observe? Or our little slice of infinity shrunk to max density...but then if infinity was shrunk to max density, it would still be... Big? Ugh my head hurts thinking of infinity shrunk everywhere and we just see our part

[@mimikurtz2162]

"512 times what we observe"? We are now observing some of the first galaxies to form after the 'big bang' whatever that is/was. It has taken their light a long time to reach us, but we are seeing that far. Beyond them there is only a particle soup.

[@mimikurtz2162]

How can you claim that some galaxies are receding from us so fast that we we never see them, if we are now looking at some of the first galaxies to form?

[@stbaz]

If I understood it correctly, we are able to see the light emitted from those initial galaxies, which is the distant past. However, because of the expansion of space, we will never be able to see those galaxies as they are now because the light emitted from them will never reach us. Maybe this isn’t right but what I understood to be the explanation 🤔.

[@mimikurtz2162]

@@stbaz Yes, that is what he is saying, and that soundbite is currently very common. But if the universe is 92 billion light years across, the furthest they can be now is 46 billion light years so we will (if we're still here) observe them as they are now sometime well before the year 46 billion AD. That's an awfully long time, but it's an infinity away from "never". I find that a major problem in discussing topics like this one is that we do not use a universal definition of "now".

[@stbaz]

@@mimikurtz2162 interesting and I’ll have to keep thinking about this. Thanks 😊

[@malcolmtaylor518]

So the fabric of spacetime can move faster than the speed of light? Because even spacetime is a reality and must represent some deeper physics at Planck levels. So the "quantum foam" can move faster than the speed of light? How come it has no mass?

[@EndlessCosmos]

Best cosmic channel in the world More and more interesting 😮😮😮😊😊😊😊😊

[@Cosmoknowledge]

So glad to hear this. Thank you!

[@faye_isc]

If the title of this video would be true, we actually WOULD NOT have been able to see and study the fking universe😂😂😂😂

[@Cosmoknowledge]

The observable universe which is the universe we know, is not the part that's moving faster than light from us. It's the distant universe, the universe we will never be able to see.

[@stbaz]

⁠@@CosmoknowledgeThat part is confusing because from their perspective (the distant galaxies) wouldn’t we appear to be moving away from them faster than the speed of light?

[@ndzimu-unamiemmanuelmoyo2028]

The idea of a big bang everywhere does seat well with me.

[@aminkabuli9415]

Where is the proof that the universe is expanding faster than light or at what speed it is expanding

[@sitarampawar7329]

The heavens, We have built them with power. And verily, We are expanding it" (Q51:47).

[@adamtki]

Still don't get it. What's the difference between space expanding and two objects moving away from each other? If drive away from my house, aren't I also expanding the space between me and the house? My momentum was initiated by the car's engine. The galaxies' momentum was initiated by the big bang. So that means the big bang launched these outer galaxies at a speed faster than light.

[@mrliberty8468]

The expansion of the universe is different from the matter in it the expansion has no mass. Mass slows down everything..

[@jimmydcricket5893]

Big Bang? Theory, nothing more.

[@TheLastStarfighter77]

Here's another question? What is Space expanding into if there was no Space before it expanded?

[@nickyekkebus1870]

Yeah I asked myself that question as well. I did find ‘something’ “The universe’s expansion is a fascinating and complex topic. Unlike expanding into a pre-existing space, the universe is actually expanding ‘into itself.’ This means that space itself is stretching. According to Einstein’s theory of general relativity, space can expand, contract, and bend. So, when we say the universe is expanding, we mean that the fabric of space is stretching, making the distances between galaxies increase. It’s not expanding into anything outside of it; instead, the expansion is of space itself. There’s no ‘outside the universe’ that we know of, so the concept of space outside the universe doesn’t apply in our current understanding of cosmology.” Annnnd my mind is bending and stretching as well 😅

[@stacielivinthedream8510]

Yes! I always wondered that as well and am thankful for the comment above mine explaining it!

[@stacielivinthedream8510]

​@@nickyekkebus1870Thank you! 🎉

[@TheLastStarfighter77]

@nickyekkebus1870 Another thing that's hard to comprehend is Neutron Stars, how the mass of a mountain can fit into a teaspoon 😵‍💫

[@luckymash4138]

its the big bang lie that compromises the TRUTH creation deeper than a simple statement

[@user-vn4zo6rc1x]

Nothing tràvels in space, it's too compacted or its opposite day

[@atiqrahman7289]

This expansion in between galaxies doesn't seem to be right.

[@user-gr3oo5ux9x]

What is mathematics founded on? seems to be in the dreamstate like everything else

[@mattocaster]

Calculations are based on the idea that light has a constant speed, and always has been the same. Is it possible that the speed of light has decreased over the history of the universe? Is it possible that at the time of the Big Bang light was moving at a much greater speed?

[@Cosmoknowledge]

Some physicists argue that the speed of light might've been different at the time of the big bang, however highly unlikely. The constancy of the speed of light over time and space is a cornerstone of both Albert Einstein's theory of relativity and the Standard Model of particle physics. Therefore, while it's theoretically interesting to consider variations in fundamental constants like the speed of light, such ideas remain in the realm of speculative physics

[@mrdeathgaming1457]

Prove it

[@Cosmoknowledge]

❤️

[@gamelife4832]

Well no one knows how big the universes are

[@Cosmoknowledge]

We know how big the observable universe is. And also, we know how old it is since the big bang.

[@cdmdfmtube]

If this theory is correct then space in our solar system is streching. Where are the measurements

[@amberwolf9401]

Yes, space in our solar system is expanding, however the distance between us and other planets in our solar system is infinitesimal compared the scale of the outer universe. To understand, say that the distance between planets doubles every 10 years (it definitely doesn’t) if you have planets 10 light years from one another, and another 100 light years. After 20 years passes, the first planet is 40 light years away now, as the space itself expanded. But the other Planet is now 400 light years away, as space itself is getting bigger, the larger the distance the more it expands. I tried to explain it relatively simply, sorry for any inconsistency.

[@ronaldkemp3952]

Right now dark energy is inferred using the Hubble constant, 70.5 km/s per megaparsec. Galaxies are spread out by a megaparsec on average. Each megaparsec comes out to be about 3,261,563.8 light years. If the universe is only 13.8 billion years old then how fast could galaxies be moving away from us after 13.8 billion years if the Hubble constant were correct? Well, 13,800,000,000 light years / 3,261,563.8 (1 Mpc = 3,261,563.8 light years) = 4,231 megaparsecs wide. So we multiply 4,231 megaparsecs by 70.5 km/s and we get a velocity of 298,292 km/s after 13.8 billion years. The speed of light is 300,000 km/s. Thus the furthest galaxy could only be moving away from us at a velocity of 298,292 km/s. 299,792 km/s - 298,292 km/s = 1,500 km/s. Thus, no galaxy after 13.8 billion years would be moving away from us faster than the speed of light if the Hubble constant is 70.5 km/s per megaparsec.

[@Cosmoknowledge]

While your calculation using the ubble constant is insightful, it oversimplifies the complex nature of the universe's expansion. The universe's expansion isn't linear, so applying the Hubble constant uniformly over 13.8 billion years doesn't fully capture the reality. Due to dark energy, the universe's expansion is accelerating, not constant, which means distant galaxies can indeed appear to recede at superluminal speeds.

[@adnanhussain3946]

GOD told us 1500 year's ago ["The heavens, We have built them with power. And verily, We are expanding it" (51:47).]

[@luckymash4138]

why do you guys treat big bang as if it's a fact...

[@seanmcdonough8815]

The universe was fine 13.8 billion years ago.... Then, nothing happened; it's been happening ever since, think about it. Where is all this "nothing" coming from

[@Cosmoknowledge]

Questions that make the future worth living.

[@user-gr3oo5ux9x]

There is no true reality, author Jed mckenna

[@user-vn4zo6rc1x]

Dark is stronger, s is close to 8

[@kafalonitis]

This is all fine unless the cosmic expansion is an artifact of our measurements and observations. Please see the relevant paper entitled "Is the Big Bang an artifact?" (doi:10.5281/zenodo.11401298)

[@ronr.riekensii2134]

. Or is it a giant black hole at the center and we're being pulled back in faster than the light from the edges can catch up. Would have the same effect I believe...

[@noahbarkelew6093]

You would be able to detect that if that was the case. Space expanding faster than the speed of light is based on the theorized age of the universe and the big bang theory. It's hard to admit that those are wrong is all.

[@ronr.riekensii2134]

@@noahbarkelew6093 I actually figured that would be the case but sometimes ya gotta toss a tinfoil hat in the microwave and see what arcs. Don't mind me, after a week of freezing my tail off fighting a cold but still having to chase down deposit drink cans to cash in I'm barely making sense to myself rn

[@mimikurtz2162]

There is no centre. Except for relative positions of individual galaxies the universe is the same from any location.

[@mostafafahmy3893]

Hello guys this was early explained by god in Holy Qur’an. The book that was descended a 1400 years ago, and the fate of the universe is also explained

[@Anonymous-md2qp]

That is the most ridiculous thing I’ve read today. Thank you for showing how brainwashed you were as a child.

[@nesaaliyah4821]

I’m sure you’ll be able to provide the verse that explains this. Right?

[@IslamTheTruth5147]

​@@nesaaliyah4821 51 47

[@mohammadashhad2226]

​@@nesaaliyah4821It's 51:47 Surah Zariyat

[@melonking8253]

@@nesaaliyah4821he will never

[@IslamTheTruth5147]

We built the universe with ˹great˺ might, and We are certainly expanding ˹it˺. Qur'an 51 47

[@IslamTheTruth5147]

We built the universe with ˹great˺ might, and We are certainly expanding ˹it˺. Qur'an 51 47