He also says if you were to go the speed of light you could reach Andomeda in around a minute because the distance would shrink at that speed but if you returned to earth to report your findings at least 2 million years would have passed
Those time he said is the time from the observer stationary to a certain point. But the one who travels at the speed of light is instantaneous, meaning it doesn’t passed any time not even a split of a second. That’s why light photons doesn’t gets old, it’s the same age from the time it was created, even if it’s comes from the edge of the observable universe .
He says at speed of light, it would take ~200,000 years to cross this Galaxy, but I thought it was only ~100,000 light years across, with us being approx 1/2 way out one of its spiral arms. Actually, we’re said to be ~26,000 light-years from its central super-massive black hole, rather than ~25,000 light years had we been more exactly 1/2 way out. Am I missing something, or is Brian Cox a factor of 2 off there?
Yes! Thank you. I've recently come to that realization. Time... Space-time and vastness of space has everything in its own bubble of time and relativity.
What travels faster than light? Thought. Nothing is more humbling than astronomy-it reminds us how utterly insignificant we are. All our knowledge and progress pale in comparison to the vastness of the universe. The mystery surrounding us is unfathomable, so instead of seeking all the answers, just live your life and be happy.
All sooooo true though. Except the most important point. If you’re traveling at the speed of light, you can’t have mass, and time does not tick. You could go anywhere, and it would “feel” instantaneous
Actually, time would still tick at the exact same normal pace for you and everything else within your own local frame of reference. You would still age at the rate of sixty minutes every hour on your own clocks. Time would only run differently for other observers, moving at different speeds, in different frames of reference. According to your clocks, they would age at the rate of millions of years of their time for every minute of your time. Travelling at the speed of light does not change the passage of time for you: it still seems to pass at exactly the same rate as always, for you and everything else moving in your same frame of reference.
Inception- how does this idea of God first generated in your mind? My guess is that you have read someone else writing about the existence of such God.
You could reach the end of the universe because if you are travelling at the speed of light time would stop for you and the expansion of space would stop with it. Therefore you can go from one end of the universe to the other in no time.
There is no time on a ship traveling at light speed - which would be impossible. If you were going very, very near to the speed of light, then you could travel across intergalactic space in far less time than would pass for someone sitting on earth watching
No one knows because of time dilation, for us on earth it would take that long but those travelling at that speed it would take minutes, also, if you came back everyone would be long gone. That's the theory anyway as far as I remember.
@@MickR0sco Correct. Relativity. If you were traveling at the speed of light in a ship.. to you, your destination would be almost instantaneous. If you came back to earth, depending how your length and time traveled, millions of years could have passed.
What makes light the limit in terms of speed? Why should the expanse and complexity of the universe be subjected to an attribute which can not adequately accommodate its description?
It's not, it only was right after the big bang for a small period. For a fraction of a second it even reached millions of time the speed of light. The Fabric of space is not particles, it's not bound to the law of relativity
If traveling at the speed of light you would never get to the edge of the universe because it is ever expanding doesn't that mean it's expanding faster than the speed of light
Expansion of the universe is faster then the speed of light does that mean 2 objects moved away from eachother faster then the speed of light and does that make most things in the universe faster then light
Nothing can go faster than the speed of light because the current theories, backed up with math, can't handle it. I have no problem with a theory that an undiscovered component of the universe travels much faster than the speed of light. This component travels so fast that time essentially is not a factor for this component. As such it is everywhere at the same time. (The elusive "god" particle). It fills in some present unknowns.
since the universe is expanding i wonder what it would look like if u could catch up to it. like if u were to get to the edge where it hasnt expanded yet. what would it look like i wonder.
I remember ones you said that if you go to Andromeda galaxy with 99.9999% speed of light so the distanse shrinks 7000 times and you can get there in minutes. Here you said it take 2 and half million years to reach there....Is this from the perspective of the observer on the Earth?
Universe is such a myterious thing ........ Imagn attaining the speed of light which is nearly impsobilbe and then taking millions of years to leave the galaxy !!!!.... Space must have smthg in it beyond the speed of light ..... So intresteinh !
If the universe is expanding faster and faster and you will never catch the edge of it traveling the speed of light then the speed of light is not the fastest thing
This is unbelievable. The speed of light is faster thing we know. But is not definitely the fastest thing of what we call the universe. Why is the some people believe that the universe was created by math. Well, math is a limited way to observe the universe. But it doesn't tell you the whole truth about it.
Curious : speed of light = 186,000 mps Does the speed of photons emitted by the sun, slow down at all once they hit Earths atmosphere, since the light is now traveling thru a non-vacum medium?
That is only true if the universe was expanding at the speed of light. If you are traveling faster than the speed of expansion, then you would eventually reach the edge of the universe.
@@mcarp555 A year is a measurement of time. A light year is a measure of distance. Light travels at: 186,000 miles per second 669,600,000 miles per hour 16,070,400,000 miles per day 5,865,696,000,000 miles per year so a light year is 5,865,696,000,000 miles and Andromeda is 2.5m light years or 14,664,240,000,000,000,000 miles away. === "No, to reach the Andromeda galaxy it wouldn't take 2 and a half million years... It would take 2 and a half million LIGHT YEARS." Wrong. It's 2.5m light years away, so it takes light 2.5m years to get there
You would to harness the power of a black hole the answer to deep space travel may lie there. Then you will be bring one point of universe to other together folding space in time. Allowing us to go through like a door.
For anyone , travelling at speed of light, the time stops. The time is a factor for the observer standing on Earth.
Entonces para el viajero es un viaje instantanio
@@ElSocial-k3t : Thats what my understanding is. You are welcome to correct me if i am wrong.
It would take the travel no time at all to travel ANY distance.
what happens when time stops and stand still ?
Fake. Time cannot stop. Every second . 1. 2. 3. 4. Etc. It goes on and on
These distances are mind blowing 😮
He also says if you were to go the speed of light you could reach Andomeda in around a minute because the distance would shrink at that speed but if you returned to earth to report your findings at least 2 million years would have passed
400 million
Fake
Yes. I have heard that. I doubt this one is Brian's actual voice.
Those time he said is the time from the observer stationary to a certain point. But the one who travels at the speed of light is instantaneous, meaning it doesn’t passed any time not even a split of a second. That’s why light photons doesn’t gets old, it’s the same age from the time it was created, even if it’s comes from the edge of the observable universe .
That’s an AI voice
Indeed. I mean half the shit we see is AI generated
Right. No mention of 99.99999999% , Brian Cox would always mention that..
It's not just look up his interviews
@ nah, I’m from England and know his accent, that’s AI
@@YaboiTL this isnt brian cox its an ai copying his voice
Amazing , difficult to imagine honestly beyond my brain to understand the distance and the speed 🤔
We’re in the greatest place in the whole galaxy that will ever be, so we better take care of it
This is some incredible information.
He says at speed of light, it would take ~200,000 years to cross this Galaxy, but I thought it was only ~100,000 light years across, with us being approx 1/2 way out one of its spiral arms.
Actually, we’re said to be ~26,000 light-years from its central super-massive black hole, rather than ~25,000 light years had we been more exactly 1/2 way out.
Am I missing something, or is Brian Cox a factor of 2 off there?
We are alone, because perception is reality combined with time and location. Yw
Yes! Thank you. I've recently come to that realization. Time... Space-time and vastness of space has everything in its own bubble of time and relativity.
Great way of describing US inflationary system.
Jehovah God is amazing 👏
if you were travelling at the speed of light, you wouldn't know the difference between traveling to the moon or to andromeda
Captain Kathryn Janeway, she did it
This is the first time that even imagining this speed and mostly maybe , how far away things are.
Hence
Hope…
Carry on young soldier
Wow that's awesome 👌
If the edge of the universe is expanding faster than the speed of light, shouldn't the expansion of the universe be the fastest thing in the universe?
1. Nothing can travel faster than light **through spacetime**
2. Spacetime itself can stretch without limit
What travels faster than light? Thought. Nothing is more humbling than astronomy-it reminds us how utterly insignificant we are. All our knowledge and progress pale in comparison to the vastness of the universe. The mystery surrounding us is unfathomable, so instead of seeking all the answers, just live your life and be happy.
The speed of expansion of the universe is >the speed of light.
All sooooo true though. Except the most important point. If you’re traveling at the speed of light, you can’t have mass, and time does not tick. You could go anywhere, and it would “feel” instantaneous
And everyone you knew and loved would be dead
@ in no time…
@@philc4811so true.. "in no time" 😂🙌
Actually, time would still tick at the exact same normal pace for you and everything else within your own local frame of reference. You would still age at the rate of sixty minutes every hour on your own clocks. Time would only run differently for other observers, moving at different speeds, in different frames of reference. According to your clocks, they would age at the rate of millions of years of their time for every minute of your time. Travelling at the speed of light does not change the passage of time for you: it still seems to pass at exactly the same rate as always, for you and everything else moving in your same frame of reference.
@@ChristLink-Channelmostly true, but at the speed of light, you would not experience time at all
I am just a human being acknowledging my imperfection and and absolute nothingness before my God, but yet we are everything to him.
God ???,,
Inception- how does this idea of God first generated in your mind? My guess is that you have read someone else writing about the existence of such God.
What’s even scarier is the universe is expanding faster than the speed of light….
Yesss i do understand this 😅😅😅most have no idea about how fast Light is 😅😅 Jakx
Tell me a thousand times and it’s still unimaginable.
Wow! Incredible
Speed of thought is faster than speed of light
you'd think it's gonna take me 2.5 million years 💀
That’s why worm holes exist
Oh.Wow.Unreal❤
You could reach the end of the universe because if you are travelling at the speed of light time would stop for you and the expansion of space would stop with it. Therefore you can go from one end of the universe to the other in no time.
Space and life itself is too deep to ever comprehend
Everything is far and imposible to reach so we can but watch the sky and dream…
At whose time? 100,000 years if you are on the ship. 100,000 years if you are waiting on earth.
It would be the time on the ship traveling at the speed of light.
There is no time on a ship traveling at light speed - which would be impossible. If you were going very, very near to the speed of light, then you could travel across intergalactic space in far less time than would pass for someone sitting on earth watching
While time can be experienced relatively, 100,000 years will still have passed, as well as everything that comes and goes with it.
True
The Universe is expanding
Correction crossing the Milky Way would take 100 thousand years not 200 .. just sayin
Amazing but sad at the same time
The flash be like hold my beer
Cancel that trip to Andromeda
No one knows because of time dilation, for us on earth it would take that long but those travelling at that speed it would take minutes, also, if you came back everyone would be long gone. That's the theory anyway as far as I remember.
@@MickR0sco Correct. Relativity. If you were traveling at the speed of light in a ship.. to you, your destination would be almost instantaneous. If you came back to earth, depending how your length and time traveled, millions of years could have passed.
What makes light the limit in terms of speed? Why should the expanse and complexity of the universe be subjected to an attribute which can not adequately accommodate its description?
👍👍👍
From the point of view of the traveler- it would be instant. Time slows as you approach the speed of light.
No you are confusing yourself here. Time would be way slower than the one on earth yes, but it wouldn't be instant at all
Is the universe expanding faster than the speed of light?
If so, how?
Anti Energy.
It's not, it only was right after the big bang for a small period. For a fraction of a second it even reached millions of time the speed of light. The Fabric of space is not particles, it's not bound to the law of relativity
Well that sure puts things in perspective. Amazing. 🪐🌛🌎
If traveling at the speed of light you would never get to the edge of the universe because it is ever expanding doesn't that mean it's expanding faster than the speed of light
Yes
It’s expanding at the speed of light so you can’t catch it traveling at the same speed
And I get cranky in a ten hour trip
Where it says destination a clear eye peeping through. Have a look.
The speed of light is really, really fast and incredibly slow.
If you never arrived, that would mean something is traveling faster than the speed of light, right?
Expansion of the universe is faster then the speed of light does that mean 2 objects moved away from eachother faster then the speed of light and does that make most things in the universe faster then light
What happens when the universe expands faster than the speed of light?
The speed of light is the fastest thing in the universe. Except the universe, because it’s expanding faster than the speed of light.
The universe is expanding. What is on the orher side of the edge? 😮
There is no edge
I always thought the Milky Way was about 100k light years across???
Nothing can go faster than the speed of light because the current theories, backed up with math, can't handle it. I have no problem with a theory that an undiscovered component of the universe travels much faster than the speed of light. This component travels so fast that time essentially is not a factor for this component. As such it is everywhere at the same time. (The elusive "god" particle). It fills in some present unknowns.
When light is curved, does it accelerate / decelerate?
As the bees gees sang.life is just a moment in space.
since the universe is expanding i wonder what it would look like if u could catch up to it. like if u were to get to the edge where it hasnt expanded yet. what would it look like i wonder.
We yearn to go, and the planets won’t let us! …forever chasing them.
I remember ones you said that if you go to Andromeda galaxy with 99.9999% speed of light so the distanse shrinks 7000 times and you can get there in minutes. Here you said it take 2 and half million years to reach there....Is this from the perspective of the observer on the Earth?
But the person who travelling at light speed feels like it's happened as instantaneous. He can reach Andromeda galaxy within a second.
Universe is such a myterious thing ........ Imagn attaining the speed of light which is nearly impsobilbe and then taking millions of years to leave the galaxy !!!!.... Space must have smthg in it beyond the speed of light ..... So intresteinh !
Wow. Please acknowledge God British man.
The imagination 🙌
Moral of the story is The Speed of Light is Slow
If the universe is expanding faster and faster and you will never catch the edge of it traveling the speed of light then the speed of light is not the fastest thing
This is unbelievable. The speed of light is faster thing we know. But is not definitely the fastest thing of what we call the universe. Why is the some people believe that the universe was created by math. Well, math is a limited way to observe the universe. But it doesn't tell you the whole truth about it.
If you have anything better, claim your Nobel.
Speed of light actually seems slow considering how expansive the universe is.
The speed of light is slow, but anything faster will Rip a hole in spacetime
Sometimes my mind behave like Pete Holmes " That doesn't make any F*cking sense"
Explain who melted the last 5 ice ages ?
But if you're going the speed of light (to Andromeda) time doesn't exist so it would seem as if no time elapsed at all!
Speed and time are relative.
Einstein explains it perfectly.
It would take exactly zero seconds for all of these trips.
So the universe is faster than the speed of light
So is the universe expanding faster than the speed of light ?
I can travel to any corner of the universe faster than the speed of light using my imagination .
Imagination is faster than the speed of light 👻🤪😵💫
A Dark Matter Wormhole Energy Drive needs to be invented to conquer Space! Then Make it travel at top speed 10 light years an hour.
So with that assumption that means the universe is expanding faster than the speed of light
The space between is, not locally but it adds up. So are you going for a place far enough away, you will never get there
Curious : speed of light = 186,000 mps
Does the speed of photons emitted by the sun, slow down at all once they hit Earths atmosphere, since the light is now traveling thru a non-vacum medium?
That is only true if the universe was expanding at the speed of light. If you are traveling faster than the speed of expansion, then you would eventually reach the edge of the universe.
Know what faster than light???
Dark!
Can light power A ship in space❤❤❤at that speed ❤
No, to reach the Andromeda galaxy it wouldn't take 2 and a half million years... It would take 2 and a half million LIGHT YEARS.
What's the difference between a year and a light year?
@@mcarp555 A year is a measurement of time. A light year is a measure of distance. Light travels at:
186,000 miles per second
669,600,000 miles per hour
16,070,400,000 miles per day
5,865,696,000,000 miles per year
so a light year is 5,865,696,000,000 miles
and Andromeda is 2.5m light years or 14,664,240,000,000,000,000 miles away.
===
"No, to reach the Andromeda galaxy it wouldn't take 2 and a half million years... It would take 2 and a half million LIGHT YEARS."
Wrong. It's 2.5m light years away, so it takes light 2.5m years to get there
@@kitmoore9969 Yes, the wording is strange, but the distance covered in both examples is the same.
@@mcarp555 There's only one example: the distance to the Andromeda galaxy.
WE ARE TOO SLOW 🦥
The fastest thing in the universe is my eyes.i can see very distant stars in just a second. ABOUT A MINUTE TO REACH THE END OF THE UNIVERSE.
So are we being visited by extraterrestrials? If so what technology must they possess and incredible intelligence😱.
So if you turned on a lamp in your living room the light that covers the darkness thats the speed of light 😕
I thought expansion rate of the universe is faster than speed of light?
Wrong. The milkyway has a diameter of around 100k lightyears
AI Brian Cox!
The speed of the fabric of the universe goes faster.
How can the universe be expanding faster than the speed of light but nothing inside the universe can go faster than the speed of light? 🤷
1. Nothing can travel **through spacetime** faster than light
2. Spacetime itself can expand as fast as dark energy can stretch it
Sooo then is the universe traveling faster than the speed of light 🤔
Light is speed it means,how or where does that dark occur night
You would reach the moon in 0 seconds from your perception.
The video title is suppose to be "crazy fact about the size of the universe."
That's scary...😢
That's not Brian Cox talking.
You would to harness the power of a black hole the answer to deep space travel may lie there. Then you will be bring one point of universe to other together folding space in time. Allowing us to go through like a door.
What about the speed of eyes ?