What Happens At The Edge Of The Universe? | Space Time | PBS Digital Studios

Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbsspacetime Support us on Patreon! http://www.patreon.com/pbsspacetime Help translate our videos! http://www.youtube.com/timedtext_cs_panel?tab=2&c=UC7_gcs09iThXybpVgjHZ_7g Lots of people believe the Universe is infinite, but there's a good possibility that might not be the case. Which means that there would be an actual edge of the Universe. What happens at that edge? Is there a restaurant? Join Matt on this week’s episode of Space Time as he explores the greatest expanses of our Universe. So what do you find when you reach the edge? More Universe? Bubble Universes? Back where you started?! Check out this episode of Space Time to find out! Measuring The Size of The Universe: https://www.youtube.com/watch?v=QXfhGxZFcVE Space Used To Be Orange: https://www.youtube.com/watch?v=3tCMd1ytvWg ----------------------------------------­­--------- COMMENTS: Squishina https://www.youtube.com/watch?v=z3rgl-_a5C0&lc=z130vh1yaynszzt3y22ixvba5zazinoj204 shadowmax889 https://www.youtube.com/watch?v=z3rgl-_a5C0&lc=z13ptl1hwkujhnv3o23tx1qyiu2xdxyxl04 MrLewooz https://www.youtube.com/watch?v=z3rgl-_a5C0&lc=z13nd5lpupycwdv3w22hjruqrpnyjj3qs04 izvarzone https://www.youtube.com/watch?v=z3rgl-_a5C0&lc=z12jize5xo3luluvj22vet1ynz2cwh0hu04 ----------------------------------------­­--------- REFERENCES: Krauss & Scherrer 2007 http://arxiv.org/abs/0704.0221 Vardanyan, Trotta & Silk, 2011 http://arxiv.org/abs/1101.5476 ----------------------------------------­­--------- Let us know what topics you want to learn more about:http://bit.ly/spacetimepoll

Comments

1. untrue. Achilles and the tortoise theory was debunked when?
2. Imagine if you somehow hit a boundary lol
3. iam always exelent at science every grade
4. If the universe is flat, what happens if you travel in the orthogonal direction of the flatness ?
5. Relativity isn't real. It's been debunked by the Sagnac experiment. Aether is real and the Earth is the center of the Universe.
6. there is clearly a restaurant there
7. i believe the universe fuction beyond or comprehension.
   
   we believe for anything to exist it must have a beginning, but the universe might have something that we don't have a word for it.
8. since when is 46×2=93 ?!
9. There is no edge
10. theoretical physics is the cancer of our time. Idiots with no clue whatsoever explaining something. What a shit
11. Universe: MUM IM 13 BILN YRS OLD I CAN DO WHATEVER I WUNT STFU IMMA DO DRUGS XD
    Oh universe, don't cut on that edge
12. So much of what we know is nested in that some smaller things make up larger things. Sub atomic particles make atoms, which make molecules. Planets make up solar systems, which make up galaxies. I see nothing in reason or logic to think that this nesting stops at any point. Therefore to me the universe must be finite and makes up a smaller part of something bigger which we do not know of yet.
13. hi guys I m planning to get through the edge of universe and I will be going to tell u guys what exactly is on the edge when I return from there. See ya
14. you said the diameter is 9 billion and the radius is 46 billion.. how?
15. Stop peddling multiverse bullshit!
16. u can't know every thing u know...
17. what happens when we begin to question the questions?!?!?!?!?!?!?!?!?!?!?!?!?!?!?!?!?!
18. I think that what we think is our galaxy is actually a deminshion and there are only 8 dimensions in our universe and our galaxy's are just forms of dark matter. That doesn't really exist and that there are Aliens but their in the other dimensions and the edge of the universe is a indestructible wall of nothing and that there are almost indestructible walls separating the dimensions and someday aliens will invade our dimension and slaughter us all cause we're super week.
    
    
    
    Like if you like my theory
    
    And find the difference
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19. how about send me into it, I'm up to explore the universe, plus I don't actually have things to do..since NASA were looking for volunteers to be expendables in space..
20. After the big bang everything started going out words. Now what if our view of space it's like a pond and there's going to be a couple drop points for two Big Bangs and both points are equally placed apart and the two waves from the point of the explosion would hit and stop in that area where the two waves would hit so with that mean that area were the two explosive Waves would meet become dead space for galaxies and all that area of expanded space would stop expanding YES OR NO