Brian Cox - Is The Universe Infinite?

Brian Cox - Is The Universe Infinite?

Brian Cox talks about the possibility of the Universe being infinite. Of course the question, does the cosmos go on forever, is an age old question in philosophy and science.

The observable universe is finite in that it hasn't existed forever. It extends 46 billion light years in every direction from us.
But what lies beyond the observable Universe?
Brian Cox explains how big the Universe really is.

What we know for certain is that the Universe is bigger than we observe it to be, essentially because the farthest edges of the universe we can see don’t look like edges at all. The observable universe is still huge, but of course it has limits. That’s because we know the universe isn’t infinitely old. We know the Big Bang occurred some 13.8 billion years ago.

#ProfBrianCox #Universe #science

"Professor Brian Cox at BETT 2020" by p_a_h is licensed under CC BY 2.0

[fransmars]

I think the point is that the observable universe is so stupendously big that it is almost pointless to try and imagine any additional space beyond. No doubt there is more, but what we can perceive is already quite a bit beyond what we can understand.

[steve-marsh]

And still on this tiny speck of dust we want to fight each other all in a power struggle that's so minute it's laughable.

[georgepalmer]

Seeing that the nearest star to earth is 22.8 trillion miles away, and there are more stars in the universe that there are grains of sand on all the beaches and in all the deserts in the world, the universe is close enough to infinite to me.

[xElNinoo]

Its always a humbling experience to think about the universe, and its enormity, or infinity. We humans are intelligent beings, but not enough to comprehend the universe. Brian Cox is incredible to listen to.

[markmd]

Many can't understand infinite universe while I can't understand a finite one.
When ever I imagine an end, the next question I have is what's behind it.

[Parkerlee]

The more I learn about space the more I want to learn its so fascinating.

[coolguy]

Brian Cox somehow has the ability to take the incomprehensible nature of the ever expanding infinite universe and boil it down to something I can almost understand. Him and Neil are some of the universes best gifts to us.

[ThisisYoungQ]

One fact we all know is that we'll never know it all 🤷

[mikew]

The most mind boggling part is how much of this is still just estimates, guesses, theories or flat out immeasurable

[paintball]

i can kind of wrap my head around space being eternal and infinite. What really mind fucks me every time I think about it is where everything came from and why things are the way they are. Why do elements like iron and carbon exist? Why do electrons and protons even exist? why when you mix hydrogen and oxygen together do you get water? space being an endless void of nothingness makes sense to me. When you throw in chemistry and physics it all just completely blows my mind

[iitzfizz]

the scale of the universe is just mind boggling

[sparkywatts]

That's a question that has haunted me most my life! When I first learned of the solar system, galaxies, and the universe I was told the universe was infinite. Just the word infinite makes me queasy. I was happy to hear Brian say nobody can visualize infinite because I've tried for 60 years and haven't wrapped my head around it yet.

[asprywrites]

Looks like I'm marathoning Brian Cox today! I've known of him and his work, but for some reason, he really callled out to me today. I'm elevating him on my Best Physicists List.

[-User.-]

I can't wrap my head round the possibility of space being infinite, There must be an end. It's crazy to think what happened before the big bang, It's almost impossible to know?

[scottbullock]

There is a reason why so many people are ignorant to the cosmos... nobody looks up anymore! Everyone looks DOWN at their phones these days. Astronomy is going to struggle to find the next generation of Brian Cox like people out there. My sympathy for the future of this occupation.😢

[Redkey]

Wild to think that everything we have ever recorded and learned about until today will just be common knowledge to high schoolers in 200 years

[albertjackson]

We do not know if the universe is infinite, however, we do know that as far as we can see, there is no indication that it ends.

[baarni]

And to think that despite our observations of light that took 13 billion years to reach our telescopes from the photons perspective it travelled no distance in no That is a mind bending thought....

[PlanetXMysteries-pjnm]

I can't express enough how grateful I am for your channel. Your videos have helped me understand complex scientific concepts in an easily digestible way

[Zuzu]

I love sitting at the park or the beach, or somewhere quiet like a library or study hall and just think of all the unanswered question that have puzzled humanity. I let my mind go and see if I can figure out the answers. I believe I will figure out some of them one day.