@notenoughspacetalk: Join renowned physicist Brian Cox as he unpacks one of the most fundamental limits of the universe: the speed of light. In this mind-expanding talk, Brian explains why nothing can travel faster than light and how this cosmic speed limit shapes our understanding of time, space, and causality. From the way light defines how we see the universe to its role in relativity, Brian breaks down the physics with his signature clarity and enthusiasm, making one of the deepest concepts in science both accessible and awe-inspiring. #BrianCox #SpeedOfLight #Physics #Astrophysics #ScienceExploration

J45on_3ss3x :

Still just a theory 🤣

;) I’m Bryson Lane Gray :

So if I looked at the andromeda galaxy on Monday and then again on Tuesday am I seeing it 4 million years ago?

Hennystep :

Then my question is, what does the Andromeda Galaxy, for example, look like at this exact moment?

oshizengigengar :

So if we sent a spacecraft with a camera very fast away from earth we can look back at the past from there.

franklind927 :

There are objects so far away, we will never see them.......

famo :

so could it not be there and us not know for another 2 million years?

Tt :

if we can see 10 million years ago does that no support the concept that time doesnt exist and everything exists at once

Craig Lambert :

but how can we have travelled so far away from the big bang that light hadnt reached this far

lina :

So can we see our own galaxy somewhere where light still travels from?

Ana (Micah's version) :

this is actually the best I've seen Brian dress so far. love him

The Galactic Loop :

Crazy we can see light from 13.8 billion years away

Jay₉⁹₉ :

Which Lecture is this??

The Sighing Dutchman 🇳🇱🇪🇺 :

Okay TikTok "experts", there is no reason whatsoever for people anywhere, to take your word over Brian Cox'

stoic_optimus :

Bottom line, Light is Time🙂

Medve Bocs🇭🇺 :

that means, even if I watch a starlight, that light traveling to me, but maybe the fart doesn't exist anymore? 🙏

✔️ :

binkdboy :

unbelievable 💯👌🥰

yeahyouknowall :

And now, they are finding out that it is much, much larger than that. 😏

Entangled Lock :

I have created 10s videos on quantum computing future technology. please check my profile

Aj Boerstler :

And I think that’s what we know now. 13.8 is just what we know now it’s far bigger than we can imagine.

LVitolo :

Looking at something that’s probably no longer there

Itstaniatimefan :

That’s about 11,760,000,000,000,000,000 miles . 😂

Name not titled :