What Happens At The Edge Of The Universe? | Space Time | PBS Digital Studios
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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:
• How Do You Measure the...
Space Used To Be Orange:
• Cosmic Microwave Backg...
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COMMENTS:
Squishina
• Does Dark Matter BREAK...
shadowmax889
• Does Dark Matter BREAK...
MrLewooz
• Does Dark Matter BREAK...
izvarzone
• Does Dark Matter BREAK...
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REFERENCES:
Krauss & Scherrer 2007 arxiv.org/abs/0704.0221
Vardanyan, Trotta & Silk, 2011 arxiv.org/abs/1101.5476
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Let us know what topics you want to learn more about:bit.ly/spacetimepoll
I like when he explains a truly mind bending fact about the universe, and then says, “and now here’s where it gets weird...”
I had exactly the same thought!! 😆
It's cause the universe is weird af
@@LuisSierra42 👍For real bro.
lol
oh god people in the future will find out the universe is round and we're gonna be known as flat universes
Sem just add to the existential dread
Of course it's round. Did you think it was oval?
actually, they gonna think the universe is static and the 'milkdromeda' is all that exists, if, of course, they lost access to our informations of the universe... =P
Pandabuse / wPanda Was about to comment the same, panda. It makes sense that it would be round for this reason, as long as you interpret your choice of words correctly. The shockwave traveling through space at the edge of the universe, if somehow observed from an outside perspective, would look like an expanding bubble. Nevermind how the light would get to your camera in the first place...
How would it be flat if everything is 3 dimensionally infinite in all directions, and the universe infinitely expanding or even being infinite at all is just a theory
Just the fact that we are blessed with enough brain capacity to even ask these questions is astonishing to me.
What's this "we" crap? I don't see you coming up with these questions.
@@jd9119 mad?
@@GeodesicBruh About what?
@@jd9119 cope?
Amen
When he shouted "I'll Science any f***ing question I please" I totally lost it and had to pause the video until I calmed down. XD
So, you shall honor your WORD, for I did hear'eth the Ear'th say , "Shane is correctomundo."
Stupid much?
That didnt happen
My favorite Matt moment!
I haven't laughed that hard before while watching a space time video. It was great.
just imagine a civilisation living on a planet on the other side of the particle horizon wondering what lies on our side of the horizon.
That is very much possible!
Maybe a different dimension. A dimension where magic exist. Lmao xD
You could say they were at infinity....or beyond. :))
I wonder what memes they have there
+chris limbaga
Couldn't there be a civilization in a galaxy 4 billion light years away wondering just that? But light from their galaxy makes them look lifeless b/c we're seeing what they looked like 4B years ago, and they see the same thing.
(I'm ignoring the maths of space expansion b/c just a fun thought ugh)
They could literally just make this shit up and I wouldn't know the difference.
Saem
If only people would've thought of that when religion came around, lol
+It's Me Stephen hawking said, At the beginning of everything, can only be explained as god. im no religious freak but, who knows.so I accept that as we will never know
Cory Teague The thing is, God cannot be proven nor disproven, since any existence of a god which created our Universe would be outside of it and it's laws and therefore beyond any way of reaching that being with any test equipment humans can derive. The only way for that "god" to be known is if it revealed itself to us through some means, which most would refer to as prayer, miracles, or in the case of Christianity - Jesus, Islam - Mohammed, Hinduism - Krishna, Zoroastrianism - Zoroaster, Buddhism - Buddha, etc. Then you argue whose evidence is more reasonable or likely, which again, can't be tested, and you end up back at square one.
I guess that's why they call it "faith".
W
0:46 I want that on a shirt!
"Oh yeah? I'll science any f**cking question I please!"
The universe seems to have a way of holding a mirror up to our attempts to find its defining features. Look at black holes, the edge of the universe, quantum uncertainty, even consciousness. We just can't get solutions in a familiar framework. It's so mysterious.
Almost as if the simulation has limits. Hmmm.
@@jolly-rancher i think everything is designed to leave just enough doubt to require faith. What we do with faith is the reason we're here. Just my personal opinion.
No, faith is just your coping mechanism for your human limitations.
Maybe the universe is telling us to stop.
There is a huge sign at the edge of universe, "You've Reached the End"
"Thank you for playing!
Press A to return to the main menu"
To the edge Farnsworth!
What is after the end of the universe thennnnnnnnnnnnnnn heh
congratulations, you broke the game
Just to clarify a doubt here if the universe is hypersphere then after completing a revolution,you would return at the same place,would you also return to the same time at which you left?
Q: What happens when we reach the edge of the universe ?
A: 42
+eljono1 You watch the Universe end of course
i don't understand...
+KiPe The God Spoiler: Its from Hitchikers guide to the Galaxy.
+eljono1 could u be more like thoughty 2 the channel
+eljono1 Starbucks
It’s trippy to see how different these older Spacetime episodes are.
And better
More information and technical.
We absolutely must find a way to travel faster than light. There's so much out there to see and learn, and I'll be damned if we let the expansion of the Universe get in our way!
What happens at the edge of the Universe stays at the edge of the Universe.
lmao
What happens in Vegas stays in Vegas?
Lmao but could be a perfect answer
Funny and all, but we do not know shit.
what if door knobs were never invented ?
*"I'll science any ****ing question I please!"*
Need that on a shirt.
the multiuniverse comes from the great void === a subtil quantum fluctuation
Tanner Hamilton try it on a tampax
I would buy that shirt
r/iamverysmart
Yeah... but know.
I love digging into this stuff with you guys! Keep up the good job. Respect!
Actually, you wouldn't see the milky way if you instantly teleported to your universes event horizon, you'd see either nothing, or some early proto-version of the milkyway (though I don't believe its visual position would be relative to its actual position in that scenario).
>proto version
That's what he said
Sometimes I think my soulmate is beyond the event horizon.
Yeah *its* name is graslahndamon although names arent really a thing in their side of the universe! I heard it mention you once! It sounded like tv static mixed with a dying dog but those were words of true love ❤ (if they could speak feel emotions or even think)
Ant Vas ur thinking right! Hi there
hahah
Ill be your soul mate
Sorry - checked the infinite multiverse - no soul mate for you.... Everyone else yes, but not you....
because we still didn't unlock the area
Yeah, we unlock it later in the game, once we beat level 7.
And after level 7 we need to defeat the multiverse boss in order to see the next level and stuff. I won't spoil anything else except that at the end is the afterlife, you get an award once you reach it. Also, is anyone hyped for version 2.0?
The Solordian Legend Has the can't feel pain glitch been patched yet?
Some people don't feel pain has it been patched or not?
time lord505 Not yet, but they did fix the Jar Jar Binks glitch, or atleast tried to...
+loren lolita So this is a Ubisoft game?
“I’ll science any f*cking question I please! This is SpaceTime” is such a perfect career defining line.
This question reminds me a lot of the horizon of the earth. I have a feeling with space that is harder to measure based on our relative size to the universe. It’s like viewing the horizon of the earth when your a Planks length size.
If the universe is infinite, then was it infinite from the very first moment onward or did it become infinite at some point?
Underrated question!
for human comprehension, there is nothing bigger than infinite, meaning that an expanding space has to be, by human definition finite
Presumably, it could have always been infinite. I think they talk about that in one of these videos.
Frank The Cat no,infinity plus anything will still be infinity,so expanding infinity make sense
@@frankthecat9547 Incorrect - you can have a space-time be infinite and it would still be said to be expanding if the space between points/objects within are increasing (like from Dark Energy). You should read/watch up on the different forms of infinity, and how some are larger (or smaller) than others. For example, the number of decimals numbers that exist between to consecutive whole numbers is infinite - but then if you add ALL of the infinities between ALL of the infinite number of whole numbers, well, you have a larger infinity.
Thinking about the universe having curvature makes my brain hurt.
Maybe there isn’t
Honestly, It ties everything up nicely. There are no edge. Just an edge to our perspective. Just assume your living on the surface of a party balloon. You can actually simulate this. Put two little marks on a ballon and then blow it up and watch the distance expand.
@@wes9451 Finite but unbounded
The causal universe is flat. Don't worry. However it may have straight loops. I'm sorry.
Just imagine you’re an ant on a basket-ball. It pretty much looks flat in all directions, but if you keep walking in one direction you’ll wind up back where you started. (-:
Love this. This video gives the most satisfying answer -as satisfying as it can get-for this particular question.
imagine sitting on a far distant planet, after ftl travel is invented, knowing that the space itself is violently expanding between you and your homeworld.
I wonder if, as modern intelligent humans, we're hard-wired to accept boundaries? The family unit, our cars, our houses, our offices, our states, our countries, our planet and it's atmosphere and so on as far as we're capable of thinking including the observable universe. Maybe space really does go on forever, without limit and we simply cannot accept it because the absence of a boundary is unthinkable in our (up to now) ignorance.
paul greenwood science is not a opinion
Good try, maths however, doesn't give a flying fuck about our opinions
paul greenwood very interesting point🤔
agreed......it is incomprehensible for our human brains !
If it started at a point how can it be boundless now
I'll bet Einstein regretted taking that picture with his tongue sticking out.
Edge so sharp, sharp sharp edge, edge so sharp you trim a hedge.
Powertuber1000
No, it made him famous in his later life.
It makes him look like a normal, fun person, and no greater than the average Human ;) It's a perfect photo of greatness :)
Why would he regret that picture?
I doubt it, that right there proves that scientists are not what you kids think they are. I'm a scientist, but I get his every day ... when i misspell a word or make a joke, then ppl think that i'm stupid and that real scientist would never do such a thing lol. Just makes me laugh ... how stupid people around me are.
Thank you so much for uploading this video. It is helping me get through the pandemic!
If the universe is infinite isn’t there a extremely high chance there is another species exactly like us. there has to be.
Nothing has 0% probability in an infinite universe. Infinite space = infinite time
If there was "another species exactly like us," then it would be the same species and thus the answer is no.
What happens at the edge of the universe?
It gets pretty edgy
Edge so sharp, sharp sharp edge, edge so sharp you trim a hedge.
wtf ok
you are weird but yeah its pretty edgy
i87x Ba dum tss
i87x BAD DUM TSK
so edgy that the only thing you hears is CRAWLING IN MY SKIN
At the end of the universe are giant Loading screens
Lol
So your idea is that Bethesda created the universe ?
@@jeromegautier6608 that explains 2020
At the end of the universe is a restaurant. 🍷🍾🍴🍽🍽🍸
@@frankblack1185 no, at the end of the universe is every meme possible
0:50 just became my favorite episode also, the self debating format is a great teaching tool.
What really confuses me is what is there to replace matter or how the physics would behave there. Crazy thought really. 🤯
I love and hate space at the same time. It's so goddamn interesting but we can never answer our questions
John Smith That's exactly why it's so goddamn interesting, the universe is mysterious.
Same with history. Fuck math and english
John Smith
Reading your comment reminds me of my own personal inability to grasp the fact that space is in a vacuum. This may seem like a basic idea. However it is mind boggling if you really think about the possibility there is no end to space. It may actually be infinite.
I thought everyone knew space was ever-expanding
I am actually sad that our question about universe will never be awnser since no matter how advance we are the universe is ifinite or expanding so fast that we can't even reach it in time before everything is destroy
What if the entire universe is just a single cell and we live inside that cell
I always thought that.
Then what are we made of?
and cells inside human body are also a universe....on and on and on
+Gana Arya you just blew my mind
That would be brilliant, but cells do not contain cells, otherwise by its very definition it would not be a cell, ergo you are talking shit
Amazing and brilliant videos... Very helpful nd full of knowledge ...good job
If universe is expanding faster than speed of light than its mass and energy is infinite, therefore it will never end, and has no end.
But what is it expanding INTO?
@@xodiaq more universe?
Who else has been binge watching space videos after watching interstellar?
I'm a Trekkie, so I've been binge watching for years.
Ive been into this shit for decades before interstellar came out.
I'm already into astronomical things or anything related to outer space since I was a kid.
me too
space has been my top wonder since i came out of my mommas black hole
I was soo lost, I didn't even notice the video ended
Nico
😂😂😂😂😂😂😂😂😂😂😂😂
The velocity of thought... Imagination! ... ...? ... ... ... ... ...? Do a thought experiment. ...
This is a video?
I LOD at this comment
It didn't end, it's infinite!
I love your fervor to science any question you please! That was well done sir!
"So what's at the edge of the universe?"
"Just more universe"
"Bummer"
What if our universe is 4D and because we are 3D beings we cannot perceive it?
every heard of string theory, if not look it up
Henry Saegenschnitter yeah I think have, I think it states that there are an infinite amount of universes and they are all sort of stacked onto each other. Correct me if I'm wrong! (Probably an over-simplification anyway)
i ment the part about string theory stating that there are like 11 dimensions.
Wei Zhao Interesting point. It's like questioning if we're actually an intelligent species. I mean only humans have announced themselves intelligent, perhaps compared to other intelligent species out there we're just ants.
Well... it is, we know it thanks to Einstein, we might not see 4th dimension but we see effects of it like gravity.
"I'll science any f***ing thing I want, this is SPACE TIME!!!" Lmao, that was awesome.
David Stagg no, it was cringy and gay.
Just like every creationist.
If it can't be disproven, it's not science. It's theology. Not that there is anything won't with theology, but if you buy into this as science then you lose all intellectual right to bad mouth creationist Christians that claim God put fossils in the ground to test our faith.
Nah it wasn’t cringy or gay.... It’s prolly just you
He's a dick with an English accent, so you love him.
blake mcmurray no, I bet that you are gay.
0:50 makes me lol everytime. Love you guys, thanks for everything you do.
The way he jokes like a kid makes an increasingly complex subject more interesting than it already is.
While watching this, I was thinking: "How about asking you to make an episode in which you invent time travel. In different scenarios, each breaking just one physical existing rule. And then explain what that rule breaking would have on our universe."
This is actually interesting to watch
I think we can not just break one rule. Everything else will change even if we change any bit of the "fine tuning"
@@kapilellawadi Not really, some studies show you need to compensate just one or two in a few cases. Besides, the fine tuning applies to the most fundamental forces, we could start elsewhere by breaking laws much lower on the hierarchy.
"I'll science any fucking question I please".... best Space Time quote ever.
I need that on a shirt yesterday
You’re the best!
I used to think the universe was like a lava lamp.
Ooh, these final answers to questions, is really mindblowing. Very nice how you expand on the theoretical limits of the theory you defend. Thanks a million for this. Really really nice.
you are welcome
if u go to the edge of the universe you will find...a kid with a controller in his hand that is playing the simulation game that we live in.
Lol perfect comment
+Phil Mike Hunt thanks I've done a lot of research on it.Lol
😂
lol
+deannoell7 yes
When he says here's where it gets weird, I was laughing my af!! As if I understood what he was talking since beginning🤣🤣🤣
The thing I find the most fascinating about this idea, is having my body and space craft be the first atoms that ever occupied the space beyond the universe
The fact that his voice has never change throughout the years
The fact that your expectations are misaligned with reality
Why would it change? He doesn't smoke (as far as I can tell.) And he was done growing when he started hosting the show. His voice shouldn't change again until he's a very old man, or if he suffers a throat injury.
@@parrish8854 being right isn't an excuse to be mean. Or at if not mean at the very least scathing. The spirit of this show is in education, take from that as an example of how you should deal with people who don't know something. 😉
PLEASE do a detailed video on the Alcubierre propulsion system. I think everyone who watches this show definitely wants to know as much as possible about it. I would love to know about experiments currently being done that are testing if this is in the least bit possible.
If we are able, even at some distant date in the future, to travel faster than light, we will be able to do amazing things.We will truly explore our galaxy and perhaps even distant galaxies. I feel this is the most important engineering challenge humans have ever proposed........that along with intelligent machines.
+Mark G There is a lot of information about Alcubierre drives. You can check out the Wikipedia article, for instance. However, there are no experiments being carried out on this. Even the theoretical model of an Alcubierre drive is facing challenges from all fields of Physics. It kind of seems impossible, unless we discover stuff like Exotic matter. But even then, the energies required would make such a drive impossible to construct or use.
Agreed
+b1odome Yeah, cause that is so much easier to understand than this type of video...
yea yes yea
+Mark G agreed because interlligent machines would be sent out in the universe
I know what's at the edge of the universe......
All the missing socks we lost in the dryer.
Ok
I've got a feeling you're right. Probably with all the cellphones I've lost, too.
I needed a big laugh!! Love your joke!
Why you talking about my socks bro!? Want to get SOCKED up!!?? ~Mr. Socky Socks
Christopher Adams, nice one!
if the boundary is accelerating away from you at the speed of light - it might as well be infinite for all practical purposes. What it's accelerating inside of is the big question. Can we get out without the laws of physics ripping us apart.
Hey Dr. Matt, you're still one of the greatest youtubers to have ever done it. Thanks for proving to them how smart I am
Buzzlightyer was right it is infinity and beyond
What.
@@imtheenforcer1975 toy story.any 90s kid knows this
@@smokeymcpot1192 no I get it's a kid's movie in fact I remember the movie clearly but what exactly does that have to do with the clip?
@Adam Liyo shut up weirdo.
You mean kachow, I am Speed. Buzz’s famous catchphrase.
Matt, great job. Don't let anyone tell you otherwise.
+TripleStack140 Thanks! That means a lot
+PBS Space Time I have a question does it have infinity edge and does it have end????
+mph_27 oh sorry and last question in the outside of the end of the galaxy the peoples can live?
+Ausby Gelisanga I think that depends on the conditions out there, but I don't see any reason why we couldn't. The edge of our galaxy isn't much different than the center. It has solar systems just like our milkey way, so to answer your question: pretty sure we can
+PBS Space Time I agree. I don't comment on CZcams (exception noted) but I do want to encourage you as well. I love these lectures and your recent one on Mass is crystalline in its clarity.
Some think that the edge of the observable universe is there because it’s the limit of the computing power of the simulation we are in.
I like the idea that the universe is just a giant black hole and we’re behind its event horizon.
Scientifically I’m a fan of brane theory though.
Space and time inside a black hole, if a black hole has an inside, behave differently from what we see around us.
@@michaelsommers2356 Locally they behave pretty much the same, and depending on the size we would not notice anything unusual.
And why would a black hole not have an "inside"? It's just the (space behind the event horizon of the) gravity well of a supermassive object.
@@magicmulder As I said, space and time switch roles inside a black hole. The only possible trajectory you have is towards the center. Outside a black hole, you can go in any direction.
Black holes don't have insides because we can never measure the inside, we can never receive reports from inside, and we can never seen anything go inside. From the outside, we can't distinguish a black hole with an inside from one without an inside. Based on the principle that if you can't measure it, it isn't real, there is no inside.
@@michaelsommers2356 By "inside" I mean "beyond the event horizon". So obviously every black hole has an "inside" as it's impossible there's zero distance between the singularity and the event horizon.
@@magicmulder There is no singularity. Whenever your math reveals a singularity, either you have made a mistake, there is a problem with your theory, or it is a coordinate singularity that can be removed by changing coordinates.
Even if it were real in this case, it is part of the inside of the black hole, and so does not exist for that reason.
Why can I not even comprehend the thought of end of the universe, we will never ever know.
We can't go to the edge of the universe...EA owns it and you have to pay $299.99 to get there.
So, what you're saying is that we can go there? ;)
Sexy Beast that's pretty cheap actually. It cost more to travel overseas
blazn0 For real. I'm traveling the world right now, and if I knew I could have just gone to the edge of the universe for less than $300... pshhhhh
James Hunt .
Can you get go there with origin access premier?
watched one on electrons and that they had 720 rotation, dudes putting out info , im loving it.
Location has a vibration, if you change your vibrational location, you change your location, so we would stop being where we are and start being where we would be in another location. That is what i call "End of the line travel" because it doesn't get anymore advanced then that.
here's a paradox for you. the universe is infinite, but there is only a finite combination of molecules and particles, and you travel at near infinite speed of One Direction. statistically you would eventually run into an exact copy of yourself and your world. my question to you is, if you run into that, have you reached a new point in space or have you traveled back to where you started? keep in mind there would be no measurable difference.
you would know if you find a clone of yourself or not
Darth Sidious, Sheev Palpatine i think that no one knows if you have found all elementos, and also you can't go further than the speed of light because we have mass, so you can't go to the past travelking to where you started
+Rodrigo Januário actually we wouldn't be able to travel past our Virgil Galactic cluster, because space is expanding faster than light and that's largest structure still Bound by gravity. so according to our current understanding of physics we would only ever be able to explore less than 1% of the observable universe. but perhaps in a hundred, thousand, ten thousand or hundred thousand years, we could make discoveries that could bypass that Cosmic barrier. and my comment earlier is just a fun thought experiment on if it were possible. because space is infinite (at least our to measurements) yet there are only a finite number of combination atoms and particles can exist in.
if this would happen - if there would be no measurable difference - it could mean that the universe is in perfect symmetry. So - even if this wouldn't be the original place of my start - it doesn't matter
'cause in my original place of my start there could be my mirror "I"
We hear talk of the early universe when it had specific finite sizes, smaller than a proton, grain of sand etc. so at what point did the universe stop being finite and become infinite? how can that even be possible, to get to an infinite size by making more and more finite additions onto a finite beginning
"Tell us what you think in the comments"....
Yeah, like I'm even vaguely qualified to do that.
You are qualified to think
Youre qualified, as we all are, caplable of making sense? Idk
DonLee LOL. Speaking of “caplable”.
I know it’s a typo but the timing...
@@youtubeaccount5153 yeah, typo. Was just saying that everyone can say what they think.
I think Double Stuffed Oreos are actually good for you. Well, they're good for me.... that's what I think.
Years later and dozens of times viewing this, and I still can't get "enjough", lol (@6:22)
Maybe the universe is not expanding. Maybe, there is something large, deep in space, way past the observable universe, with an intense gravity, pulling everything towards it. Your thoughts? 💭
Maybe, this object is increasing in size, what makes its gravity more intense.
Very possible
@@jackbrown4130 any thoughts on what 'IT' might be?
diamond amar
Maybe a cluster of rock, in every direction.
Interesting 🤔
If we somehow move to the edge of the event horizon, and start observing, wouldn't that create a new center and a new event horizon?
off course
Faares Deeb It's not infinite, it's infinitely expanding. At some point it will stop expanding and implode (it's one of the most probable theories)
Faares Deeb well, you might be right, we will never know
TedDanielson Isn't that what he said?
TedDanielson ...good question.. i think it would
I like this guy.
+One way Ticket Same here. I love the lack finger quotes.
+One way Ticket Yeah, and his posture is great.
+One way Ticket yea, but sadly he only plays cs 1.6 D:
+Resilience _ I own 1.6, have it installed on my computer, but only use it for Garry's Mod :P Global Offensive ftw.
+arse monkey (The Cult of Jim) 1.6 is on Half-Life 1 engine, Garry's mod is on HL2 engine, you're talking about Counter-strike:Source.
the great rotation, they are on the top at the edge of the universe, they control the whole thing and when they get to the bottom
5:43 Ano ano ano ano ano
If you think about it everything single object is inside of something else. And on the outside is space or another object. The earth is in the Milky Way galaxy, just like the galaxy is inside the universe. The universe itself may never end, but if it does, what is outside of the universe. What's outside of the thing holding the universe. I'm so blazed sos
Parkour Pandemonium exactly that it's endless.
Wow bro chill it's not healthy for you lol
But your right it's Fucking freaking me out to know what's beyond this Cold Dark isolation Man I'm blazed now
Whats really crazy, what if our universe is just one drop of water on some larger scale life
Parkour Pandemonium Outside of the universe there are people who control the matrix 😂 But even if we tried to escape this universe, we could never get past the guardians of the galaxy.
Parkour Pandemonium.: was thinking just the same here
People before: earth is flat
People now: earth is a sphere
People now: universe is flat
People later: universe is a 3d projection off a 2d surface
KlutchOpz give this guy a nobel prize
People now: earth is flat
String Theorists: The universe is 11 dimensional
People *WAY* later: oh shit, the universe doesn't exist anymore
People later: the universe exist riding a wave. It's positive.
setting I've been writing uses bubble theory, and between it is a sort of "laws of physics soup" that doesn't really have time or space but has laws themselves
So he didn't mention if there could be a real edge to the universe. Imagine your going in a straight line much faster than the universe expands, then hit a black wall. The black wall moves further and further out in all directions exponentially as space-time expands but matter/energy can never go past the edge since you can't move forward if there is no space/time.
I'm pretty sure there's a restaurant or cafe at the end of the universe. I've heard they have a great margarita and nachos night on Tuesdays
yeah but they have a bad atmosphere
42
No such thing as Tuesday in deep space y'know
@@marcushendriksen8415 Look at it this way: Our earth time is just a human construct, but can be used like a compass, as a point of reference, in all places of the universe.
Called the Sad Cafe, like the Eagles song, because in reaching the end of the universe, you have cut yourself permanently from all things that exist.
I think, that when we reach a point with a lack of mass, time just freezes, but we would not notice it, because our feeling of time also depends on our surrounding.
Isn't the void of space itself (the spots between the stars, planets) mass-less?
Wings Unfurl no. Very little mass but not massless
The curvature of the universe is around 0.5 ( maybe lower than 0.1 or greater than 0.8 but the universe isn’t flat ) it has recently been discovered by the scientists, so let’s take an example, let us take a balloon which will never burst, now let us keep blowing it, it will become so big that we won’t notice the curve of the surface of the balloon. Also these universe discoveries is like digging up a pyramid, first we dig up the narrow pointy top then afterwards we are able to dig out the base and explore the corridors etc.
If one were to travel at the speed of light towards the edge of the universe, time would shift the closer to the edge? Obviously only light can travel at that speed however, observable light further from its origin would perceptually increase in speed to outside observations. It doesn’t speed up but rather looks that way as the universe boundaries are widened.
there could be a solid edge like the edge of a bubble. to preserve energy in the system it would probably reflect everything like a big, perfect mirror.
What if someone teleport himself outside the edge of the universe? What would he find there?
Harambe !!
Just think a bit. No one can even imagine (if we assume there is an edge), how do you want anyone to answer your question. + technically teleportation defies laws of physics(even if scientist are doing quite amazing things with atoms).
wouldn't it be just pure PURE darkness since light would not have existed in that x,y,z then boom you'll see a bright light from the big bang (if you stopped moving)
gwenael JAN Teleportation of atoms have been tested already.
that's what i said in my 1st com, thanks for replying tho
I gained one brain cell after watching this💪
GREATEST FAN OF AB DE VILLIERS MR.360
I lost three...
www.ncbi.nlm.nih.gov/pmc/articles/PMC4394608/
"In adult humans, 700 new neurons are added per day" - so you got one new cell in 10 minutes, while most other normal people gained at least five.
@@peepingtom9342 His a millennial he gets only 1 LMAO
Too bad. When we learn new things, brain cells die. So you're now more stupid.
GREATEST FAN OF AB DE VILLIERS MR.360 and watched a few memes and lost all of em :)
1.6 for life. Still playing in 2020
We are in a part of space that's someone else's cosmic horizon... that's mind bending all the way
Who's particle horizon expanded while watching this?
My particle expands when I watch porn
@@ClassicRock1973 Yeah, you beat me to it. I was gonna say something similar about *something* expanding while watching this. Lol
Alan Lloyd i was about to say the same exact thing haha
Jon d it smells like sharticle shytics to.
my particle horizon shrunk once i heard "multiverse"
Theres a Resteraunt there called MillyWay's! Home of the best Pan Galactic Gargle Blasters in the universe, and a cow that begs you to eat it! MILLYWAY'S: IF YOU'VE ALREADY DONE 6 IMPOSSIBLE THINGS TODAY, WHY NOT TOP IT OFF WITH A TRIP DOWN TO MILLYWAYS! THE RESTERAUNT AT THE END OF THE UNIVERSE!
lol
*+Joe Baumgart*
An oldie but a goodie. I now have the urge to re-read.
Spacey's is way better!
There's also a chocolate called Milky Way
Yueyue Plays First it's Millyways not Milkyways second its a Hitchhikers guide reference.
I thought about something. If the frame of reference is moving relative to the expansion of the universe, it will not be moving in its own perspective, and will view a different curvature of the universe.
The moving being will percieve hyperbolic curvature in the direction of travel, and spherical curvature behind them. It makes sense because "space" and "time" as defined by special relativity is defined differently in different reference frames. The present for one person can be another's present, past, and future given they are moving at different velocities.
Apparently a "flat" universe means the curvature in all directions cancels out. It is as spherical in one direction as it is hyperbolic in the other.
I really hope once we die. Our souls are able to go anywhere they want, either in Earth or Space
that video was amazing, kept me interested. but that very last question about CS made me love you already and this is my first video of you that i'm watching xD
same!
Same here!
me too
ditto!
Same here, and subscribed, good information and well explained.
I actually been beyond the edge of the universe, I am back to recruit true believers for our true overlord, orgy is acceptable.
Sign me up
Wait, is that a reference to a certain 1997 movie involvolving FTL travel and black holes?
Anytime.
this kids is how religions... cough cough i mean cults work
Orgy Porgy, Ford and Fun.
"No monkeys were harmed in the making 'Space Time' in any events that can be consistenly assigned to our clocks at PBS"
I see what you did here lol. I want a T-shirt of that! XD
"i'll science any f****** question i please" Doing a retro binge...LOve this show
Pondering the mysteries of The Universe is one of the most satisfying things to do in Life.
I find it fascinating and relaxing
Right. Like counting seven-cent dimes.
I didn't understand anything but they still managed to blow my mind
Same
fynes leigh :)
Nothing we may find "out there" is any more mind-blowing than our existence here, now.
Just Imagine a civilisation living on a planet on the other side, its the solar system, around the galaxy and the sun. This most learning subject to all students and all others. Thanks for posting this kind of video.
Dear PBS Space Time,
*What Happens At The Edge Of The Universe?*
Great video, but I have some question.
- Let’s assume our universe (from the edge inward) consists of _spacetime_.
- Let’s assume this _spacetime_ is expanding.
- Let’s assume our expanding _spacetime_ universe is flat.
*Questions*
1. Regardless of whether we can get there, what’s one meter _inside_ the “Edge?” The same spacetime as described by Einstein?
2. What is our _spacetime_ expanding into. I.e., what’s one-meter _outside_ the “Edge?” More spacetime? Empty space consisting of no matter, energy, or particles of any kind?
3. How can it be coherent to say time _began_ or there is an "Edge" if our spacetime is simply expanding into more spacetime? I.e., if you could get there, how could you exist if there is no time?
4. Basically, does _time_ exist outside our universe’s spacetime “Edge?” I.e., outside the “Edge” as illustrated in the spacetime matter/energy bubble in your video?
Ref.
Stanford Encyclopedia of Philosophy - Time:
plato.stanford.edu/entries/time/
☯ yYM ☯
My spacetime watch says it is half past particle horizon if ya know what im saying ;D
*I dont know what im saying*
+yinYangMountain I believe you would be delving into the idea of dimensions. When you say spacetime, and say it is flat, this would be in the fourth dimension, not the third. So the expansion of spacetime into the fourth dimension is something a little more involved than thinking of the universe as a sphere in 3D. For example spheres in 4D can be stacked side by side just like circles in 3D (imagine plates stacked on top of each other).
So to ask what is outside the universe, well first you would have to know fundamentally what dimension the universe lives in.
MadJDMTurboBoost I'm sorry MadJDMTurboBoost, but you seem to be confusing the issue with too many irrelevant ideas. My question is classic. And I'm wondering why, with all your knowledge, you don't recognize it.
Anyway, 2D, 3D, 500D, fundamental dimensions etc. are irrelevant.
The classic thought experiment in physics/cosmology at university: What would happen if (assuming it's possible for this thought experiment), while standing a few centimeters from the expanding spacetime edge (as it's not correct to discuss the _fabric_ of space-time as separate components while simultaneously asserting time began at the Big Bang. Ref. Einstein) you attempted to reach past the edge? I.e., where would your hand go? [Ref. What is the universe expanding into? Ref. Is there a _there_ there? Is there time/existence outside the universe? What is _nothing?_ I.e., the absence of all-things, including time, space, logic, potential, quantum events?]
Please attempt to give a concrete answer to my initial question. If you don't know, simply say you don't know.
yinYangMountain I didn't answer your question. I didn't even try to. All I did was throw out some ideas in case it could spark an answer or even create more fundamental questions. I wasn't trying to answer such a philosophical question in one comment on CZcams without any research lol.
Was just hoping to add some more to your comment. But no, I don't know what the universe is expanding into, or what the singularity came from, or if there are other universes besides this one, or if this one even exists. There are no answers, only logical deductions and reasonings. No one can say for sure dude.
What Happens At The Edge Of The Universe? When speaking of the edge of the universe, it usually refers to the edge of the visible universe. If you could instantly travel there, you would then be at the centre of the visible universe from your new perspective. The milky way galaxy would then be at the edge of the visible universe, but would appear in it's early stages of development, since the light from billions of years ago would only be reaching that point now. So, no matter where in the visible universe or even beyond that you travel to, you would always be at a new centre of the visible universe. You could never go to an edge where there is nothing in one direction and everything in the other.
We don't know
SideTrack Beatz and that is the correct answer
SideTrack Beatz, thats the only acceptable answer
Jack Sin The JOOOOOWS, the JOOOOOWS!
ya u r right
Deathcorean92 funny how one should be reachable by plane and the other is a bit more complex hum?
Sounds interesting, gonna finish watching this later
My man, I finally found thy video help me understand what mean by a flat universe.