How Big Is the Universe? | Your Cosmos | Earth Science

So we know the Universe is big, but exactly how large is it?
And if it has been constantly expanding since the Big Bang, then how big is it now? Bend your mind around the truly massive scale of our cosmos with Dr Becky Smethurst.

[mlgoreable]

Seems like the audio guy had fun adding a BOOM to every line of text that appears on screen...

[leveltwotrading]

Dr Becky, is my kind of scientist, such a great science communicator

[EdinMike]

Love seeing Dr. Becky on other channels !

[Loafy]

Dr Becky Smethurst has her own YT channel. She's very active, posting videos regularly.

[ilaphroaig]

Could dark energy be a remnant from something that was there in that spot before the universe expanded to this point?
Yes, so maybe the universe IS expanding into something that was already there.

[Iamaweirdo]

I love this video because I tell my mom I am learning geography

[winstonchang]

The Universe is a mathematical how big the universe is, is like like asking what is the biggest number.

[PilatesGuy]

👍🚀Awesome video on an endlessly fascinating subject - thanks!

[komoriboy]

Dark matter is time, that's why when you look a really long way away you are looking it to the past. In 1 billion years the universe will be 10% bigger because it will be 10% (ish) older. The expansion is speeding up because as we all know, the older we get the quicker time goes, a year for me now aged 45 goes a lot quicker that when I was a child. Now that I've solved what dark matter is, where do I pick up my Nobel Prize? 😂

[T]

Less annoying banging noises next time please.

[watchman]

We actually don’t know how big the universe is. We only know how big the visible universe is.

[RixFixIt]

If the universe had an edge what would it be like . What would the universe look like or be like from beyond the "edge" of the universe.???

[ravinderpalsingh]

Keep thinking and never stop thinking and imagining but for best, and for ALL

[stevejessemey]

Oh how I would dearly love to learn something new 🆕 🌌

[veskovarbanov]

I have a question- if the universe is infinite, then how is it possible that it started with a big bang- was this big bang an event that happened in all this infinity... sounds unrealistic. Or was the big bang something that happened in terms of the visible universe but we simply have no idea what is going on in this infinity? Hmm

[garrickseal]

What BBC documentary is this I would love to watch it in full? ❤

[djbusters]

Not so great audio, made it hard to understand the dialogs.

[newsmonger]

The answer to the Fermi paradox is easy. It's simply size and distances. I believe there are probably trillions of intelligent civilizations out there but are unimaginable distances away and we will never be able to make contact.

[roboslug]

Has anyone considered the very real possibility that the universe is accelerating away from us because this is the only galaxy that has Taco Bell? I'd run away at the speed of light, too, if I could.

[Sophia-cdci]

Ahaha I didn't know Dr Becky was narrating this. I had to recheck the channel twice