How the Universe Will End

Neil deGrasse Tyson describes the different prevailing theories on how the universe will end.
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What does dark energy accelerating expansion lead to? Can you rip a quark apart? Learn bout the heat death of the universe, the big rip, and whether the universe could recollapse on itself to create another big bang. Could there be infinite big bangs?
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Science meets pop culture on StarTalk! Astrophysicist & Hayden Planetarium director Neil deGrasse Tyson, his comic co-hosts, guest celebrities & scientists discuss astronomy, physics, and everything else about life in the universe. Keep Looking Up!
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00:00 - Introduction: The End
00:21 - Theory #1: The Heat Death of the Universe
6:36 - Theory #2: The Big Rip
10:18 - Theory #3: The Big Crunch
11:45 - On Fearing the Death of the Universe

[@StarTalk]

How do you think the universe will end?

[@mikeuk666]

If the universe ceases to exist would we have ever existed ourselves 🤔

[@Grymgar]

If Matter cannot be created or destroyed, what happens to matter that's ripped?

[@dianedl7707]

hopefully without me.

[@tankmango7574]

With my balls disappearing again

[@user-pi7gc4wg8k]

Nothing is set in stone, all of these are theories supported by data and the very limited knowledge we have gained on the universe. Anything can happen we don't or probably will never truly know.

[@light-master]

I came to Startalk for the science, but I stayed for the friendship between Neil and Chuck.

[@denisebledsoe8836]

Well said

[@BaronVonQuiply]

In some ways, maybe the real destroyed universes were the friends we made along the way. Again, I apologize about that.

[@DSAK55]

Chuck said it best: we won't make it out of the century

[@Primitive01]

Strange.

[@aikspace]

i'm also just hanging out with the guys :)

[@cindygr8ce]

Neil is so good at explaining stuff so that I can pick up on what scientists theorize without making me feel dumb.

[@Hazar1905]

Thank you so much for going back to the studio. Much better audio quality and no delay between the speakers.

[@jacobgarcia7918]

I think this might be an old episode. But I could be wrong.

[@abil3362]

The universe may end, but the cameraman still won't die

[@uncharted7againblackking256]

Fr fr

[@bodhishakta7271]

Eternal witness.

[@R0bilicious]

5:27 Chuck, you were there for the Big Numbers explainer!

[@marcineren112]

He should listen to Neil more , but he probably was busy thinking how to make a joke out of it.

[@nilayshekhar999]

he probably listens to neil for whatever period and forgets about whatever they have recorded later in the day lmao

[@JesseJames83]

Neil just forgot who he was talking to

[@Crunch104]

Chuck went with his initial thought and went 10x100. It happens lol.

[@sebastronomical]

I can almost guarantee Chuck knows what a googol is. I think he’s just playing the part to make the show feel more informative. After all, you never know when it’s someone’s first star talk episode, and it can be helpful when learning new information if you have someone else learning it as well giving feedback

[@savagepro9060]

Every time Chuck says: "OK"

[@JesseJames83]

"right"

[@bastianquiroz9966]

Alright

[@ScratchinAway]

or finishes Neils sentence with him but starts after him so hes already heard it 😂

[@macadelic2492]

"Yes"

[@villeace]

“Wow”

[@n.pstudioanimations8420]

😂 I’ve been watching you explain the universe ever since I was very little and you have played and still continue to play a huge role in my love for space and science in general thanks for teaching me most of what I know about space and how it all works

[@xliquidflames]

Chuck has been doing this for so long; he has been learning from Neil for so many years that he should be given an honorary degree. I mean, I get the sense that he knew everything discussed in this episode (except the one math question) but he is a consummate professional so he plays along as if he doesn't. I'm starting the campaign right here, right now: Give Chuck an honorary degree!

[@mario98730]

Dr Chuck!!

[@MeHomie-qe6cw]

10¹⁰⁰ is 1000

[@purrple.shadows]

He's smart but that math error is really odd.

[@HarelAvital]

He just forgot I'm sure he knew that google is 1 with 100 zeros. Don't underestimate Lord Chuck

[@obiziii]

Or maybe Chuck was trolling Neil. Chuck said 1000 with such confidence & Neil's face palm. 😂

[@dfwdeadshot9557]

Hi star talk thanks for all the great content.

[@reneonier]

0:10 Chuck, you owe me a pair of eardrums.

[@EmpyreanLightASMR]

i've been pretty outspoken about their new set-up and whoever they've hired for the production and this is yet another example. what a rocky ride these new episodes have been. My bluetooth speaker is fine, but now my neighbors think I killed a pig lol

[@BenJamin-iz6yc]

yeah seriously, paniced and almost turned it off bc of that

[@barehope]

😮I love your channel. Thank you for sharing your expertise with us

[@simplyme8009]

Love you both. Stay safe.

[@kasahuntilahun6860]

love from Ethiopia

[@laladigitalsystem]

Me too

[@DaveQZ85]

I'm glad I'm alive at the same time as Neil and Chuck. They have such a great way of explaining science to the masses. We need to figure out a way to digitize these two so they can keep going.

[@dawnhansen7886]

100 % Agree ❕️

[@astrocoastalprocessor]

An AI Neil and Chuck are the astrophysics Statler and Waldorf that the world eternally deserves

[@nyoverse]

Weirdos ..

[@IQmates]

I love the new edits on StarTalk. Illustrations make it much easier to comprehend things Neil explains.

[@MoosesValley]

You guys are so awesome and entertaining. I'm a long time amateur cosmologist, and keep pretty up-to-date with the latest cosmology theories and discoveries, but I still love to tune in to StarTalk to enjoy the banter between you two. A++

[@RealmsSMPStudios]

Fun fact, if we go down the heat death route, there’s a stupendously, ludicrously, unbelievably small chance of a new big bang occurring due to quantum fluctuations in an estimated 10^10^10^56 years…

[@sillyWillieBilly]

Cause my brain isn't working yet, can someone post the number in 10^x

[@Parsa.a298]

10 to the power of 7600​@@sillyWillieBilly

[@NicholasLayton]

Bruh that is way bigger than 10^7600. We can't write it in the form of 10^x, that's why he said 10^10^10^56. To even write it in the form of 10^10^x would be 100000000000000000000000000000000000000000000000000000000. 10^x would require writing twice as many 0's are there are stars in the UNIVERSE.

[@RealmsSMPStudios]

@@NicholasLayton yeah, the third 10 would have 56 zeros, that number is 100 octodecillion, the second 10 would have 100 octodecillion zeros! So it would be 10^whatever the name of that big number is…

[@lisam5744]

Your idea of a fun fact is MUCH different than mine. 🤣

[@fredinit]

Nice seeing Chuck thinking in the same vein as Neil in this one. More scientific than comedic, with Neil providing more comedy. Love it!

[@willieluncheonette5843]

could you please give an exact date so i can make sure to watch the complete bucket list of TV shows i want to see before the end comes.

[@WishItWas1984]

The best part of this video is learning about Ground News. As "news" became more polarizing on each sides' major platforms, I stumbled on StarTalk's video with the creator of the Ad Fontes Media Bias Chart. From then on, I simply only read stories from those center/top agencies, such as AP or Reuters. Ground News not only utilizes this monitoring platform, but two other major ones I never heard of, and looks to do it in an easy to absorb and navigate interface. I am excited to subscribe, yet ultimately sad that I even have to. Thanks StarTalk!

[@ProfGlitch]

the "center" is just as much a biased position as the "left" or "right"

[@Grymgar]

I like how the least accepted theory gets the ad break xD

[@CliffordLake]

It ends at a restaurant. Everyone knows that.

[@Whuzzer]

A restaurant, huh?! Get up and fold yourself in half 12 times

[@CliffordLake]

@@Whuzzer Douglas Adams, my good man. Learn a book.

[@mikeuk666]

​@Whuzzer whoooosh that went straight over your head 😂

[@Whuzzer]

@CliffordLake you can get your point across without insults. Clearly we are from different generations so references will be different. Lighten up Clifford. Insulting people for not possessing the same knowledge as you in the comments section of a Startalk video? Big ego. Little man.

[@XDeserak]

"A restaurant". Don't be ridiculous. Millaways is THE restaurant.

[@PsychiCorey]

That screech spoke volumes 🤣

[@Cuppa_Doc]

Chucks scream startled my Cats 😂😂😂

[@YusufKesharia]

I was having dinner while watching this, and I just choked on myself at 5:18.

[@miketheman1393]

Lmao.. me too

[@lianelindsey1407]

In the past we had Albert Einstein... Now we have Neil and Chuck!

[@colonelkurtz2269]

Einstein made contributions to physics. His brother Frank made a monster. 😅

[@ryansandlin2550]

Hello, I just recently heard about the concept of “alter magnets”. Can you please dedicate a video to explaining the law of magnetism, what “alter magnets” even are, and what the implications of “alter magnets” might be? Thanks, love the show!

[@GuyayeFusa]

the clarity you bring to your subjects is beyond impressive!

[@jeffrutledge3997]

Love the content. Thank you

[@gusgarcia150]

What a fun one! Loving the content from the office again! 😊

[@masheldon]

I appreciate a fine, uplifting Star Talk episode at the end of a long day. Thank you!

[@Thrillr]

Bro I love seeing y’all interact. Makes learning fun haha

[@nel99999]

I would love to see Neil talk about astronomically significant man maid structures ,and to give us his opinion about the pyramids and gobekli tepei from an astronomical point of view.

[@user-zh9xm5es5m]

I would like to see a Egypt explainer on the pyramids .

[@BaithNa]

Entropy wins in the end 😔

[@jettmthebluedragon]

Why are you depressed 😐? Do you even understand the REAL truth of entropy or are you just a believer?🧐

[@SLIDEMONGERZ]

Professor Brian Cox's explanation of entropy in 'Wonders of the Universe' is probably the best breakdown of it (no pun intended) for the sweaty masses. There's even an analog in the form of a sand castle. #Weeeeee

[@jettmthebluedragon]

@@SLIDEMONGERZ well you don’t need a whole bunch of information just to explain simple such as entropy 😐as the process goes like this ➡️↗️➡️↘️➡️➡️↗️➡️↘️➡️➡️saying entropy ALWAYS increases is flawed as if you say entropy never decreases then we would never die as we would continue to grow forever 😑

[@JeremyHomicki]

I love that you guys ended with sleep well because at the time of me watching this I'm about to go to sleep.

[@The-binge_710]

Great Content

[@Damita-ye2yl]

That deserves another thumbs-up.👍Sleep tight everyone.

[@michelazzo]

I just witnessed the birth of a StarTalk video. Such a privilege.

[@shalini3382]

6:03 A line from a famous melodysheep video "End of time", where NDT himself has said this iconic line.

[@albertdehn8381]

Thanks for sharing 😀👍

[@elizabethpetrie3066]

U maker a good serious comedy team! Love it❤

[@Bassotronics]

The universe may not end in my lifetime but it may end in my ghost time and still scares me.

[@adolfodef]

^ T H I S ^ If there is reincarnation (or effective technological inmortality); this is something that is going to haunt us literarily until The End.

[@desmondd1984]

The lifespan of the universe is on such vast, incomprehensible timescales that it's effectively infinite. So I would worry less about the universe ending and more about your ghost being forced to experience all that.

[@_executie]

Sir Degrasse. Will you ever do a live stream, so we can ask questions live?

[@BaronVonQuiply]

Somewhere in a parallel universe, Physicist Bill Waterson draws comic panels in his spare time that he calls _Kelvin and Hubbles_

[@IvarKurgarra]

This is by far the best StarTalk episode i’ve seen 🤣🤣

[@ronalddelrosario7405]

Awesome ending to the episode! Reminds me of the Aiel saying (from the Wheel of Time series) "Sleep well and wake." Basically, I hope you don't die tonight! ;)

[@Fatty-Biscuits]

Probably not the coziest video to fall asleep to, but I’m here to try it anyway

[@Rick_787]

Fire Or Ice

[@kyuzodarkwolf5559]

There is a visual video of the end of the universe (Timelaps of the future a journey to the end of time) they also added some of niel's lines there.

[@ErnieP89]

Chuck was scared the entire time he was holding that rubber band. 😂 Another great episode!

[@GadZookz]

After the galaxies use up all their gas could t they just switch to electric? 🤔

[@jettmthebluedragon]

That makes no since 😐as electricity all ready exists in gas 😑ever Ben in a thunderstorm?🙃as you failed to mention the irony if you scientists say all galaxies will burn out that does explain why they came into existence if their was no gas to create the galaxies in the first place 🙃

[@seanrosenau2088]

​@@jettmthebluedragonThat was a gottam joke.

[@Amadioh]

I think i will be responsible for the big rip (i fart really hard)

[@AT-yz4eo]

That intro was the stuff of nightmares. Kudos editor!

[@oneofus6924]

watching on youtube is a mix of me turning up the volume to hear neil, then sharply turning it down a dozen time an episode everytime they laugh or chuck speaks.

[@immunitycorrupts3641]

Chuck gonna need a work comp claim to get that finger checked out. LOL.. You guys are amazing.

[@Pluckaduck86]

The universe is always ending. That’s just the front of the ship. Here and now is the brain.

[@tomhiggins875]

I've been using Ground News for about 3 years. It is excellent.

[@anthonyhopper7830]

Great podcast!

[@SachinKumar-pf2hy]

It's 3:30 am in India and here I am😅

[@dawnhansen7886]

Educational Entertainment to the MAX ❗️ I Love StarTalk ❤

[@electrovoyage2613]

Had a big Rip, big crunch, big squeeze and big bang after Taco bell

[@Ben-311]

Sounds more reasonable than the sky wizard coming back.

[@lschastain77]

Are you referring to Jesus?

[@Peacefulpaige22]

​@@lschastain77Sky daddy

[@tubruton]

They just reclassified cannabis and now the whole universe is ripped.

[@arthurgasparindomoreira4814]

Neil's laugh is delicious to hear, I feel all warm and fuzzy and makes me remember to hit the like button everysingle time.

[@michaelccopelandsr7120]

Neil and Chuck for 2024!

[@onemercilessming1342]

Someone is channeling his inner Michael Winslow ("Police Academy").

[@danielvermeer3363]

The OG GOAT of beat boxing 😮

[@onemercilessming1342]

@danielvermeer3363 Another internet troll...and Friday is still 3 days away.

[@ShmackHarv]

Bro 5:18 😂😂😂😂😂😂😂😂😂😂😂😂

[@e-money5085]

I think Chuck thought he said "ten times a hundred" not "ten to the hundreth power"

[@AceSpadeThePikachu]

Some studies trying to tackle the Crisis in Cosmology may be hinting at the expansion of the universe not being constant and that it may vary over time and space, but still nothing conclusive yet. Also you should do a separate video on the fourth hypothetical apocalypse scenario, Quantum Vacuum Decay.

[@nursejim2129]

The universe ends with the big rip? Man. It ends several times a day at my house then.

[@HedonisticPuritan-mp6xv]

You can convert into the big bang with a lighter.

[@laveeshtomar]

I will create a new universe for y'all after 100 likes

[@christopherholladay1015]

Too bad they aren't taking you seriously 😒

[@MaxBenn]

Can I get a "Trust me bro" Guarantee?

[@giancarlocrumps7564]

can believe this comment doesn't have 1000000000 likes shame on you guys 😂

[@laveeshtomar]

​@@MaxBenn Trust me bro 🥹

[@beebing8662]

Who needs another universe,

[@jasonpickens9839]

I came across Ground News the other week. Looks very cool. I'd pay for it if it covered New Zealand news.

[@MrBibobs]

Thanks guys!

[@juskahusk2247]

People worry about the Universe ending in 10³⁰ years but no one cares that humanity won't make it to 2030.

[@sanra167]

lol we all 💀ing in 6 years? That’s crazy

[@swiftbow2110]

No Sh!$

[@TBlack-qb1nb]

Very optimistic 😂

[@BaithNa]

We'll make it to 2030 but it's not going to be pretty due to A.I. and automation decimating the workforce. Climate change accelerating also means large parts of the Earth will be uninhabitable so mass migration and water wars will be common place. Making it to 2050 is going to be the real challenge.

[@vanessakitty8867]

Awe, How many end of the world times has been said by human kind? Ending six years? Most likely not.

[@tankmango7574]

It ended when I found out my ex was not the father.

[@darthazul2143]

😂

[@missoula2213]

But you're a dude Wouldn't you and him have worked that out already?

[@samuelgarrod8327]

That's what you get for being a slapper

[@cheapskatepanic]

Oops

[@mrmr-qx4jq]

I am the father

[@sofronije74]

"Melodysheep" has beautiful video about this subject. "Timelapse of the future" or something like that.

[@erikabartholomew153]

The sound track to that video is brilliant

[@jjj76120]

Super content! Thank you Neil and Chuck!

[@eddardstark3272]

Can someone tell me what is steady state theory? Someone told me that the theory says density of universe stays same even we keep expanding.....i felt something was wrong cause state and thickness has nothing in common, plus i have had heard about the Rip!!!

[@joshmiller7870]

@startalk Question for Niel and crew: If one were flipped over in a 4th dimension and then put back in a 3rd dimension world, would this person now resemble their mirror image that was observed prior to the experiment? It's keeping me awake thinking about 4.

[@macadelic2492]

0:06 that edit is WILDD 😂

[@David-lr2tj]

Rumsfeld's "unknown unknowns", they'll always get ya

[@JohnnyBlane]

“I fear what we don’t yet know to worry” - Neil… that’s deep man

[@theElrin]

Looking up makes me happy.

[@richardfurness7556]

Reminds me of the excellent short story Last Contact by Stephen Baxter, in which a middle-aged woman and her daughter wait for the Big Rip to tear the Earth apart.

[@MrRockrobstr]

Anyone else having trouble with font size shrinking,when making a comment in KZbin? When I searched for the fix for this KZbin says to change the font size of your device. But this does nothing.

[@hamzaameer205]

would be nice if they made a series about new discoveries and how they could effect the future even if they are small discoveries or maybe even new inventions or new leaps of already existing tech.

[@loosebacontrails666]

So amazing, always brings me smiles and laughs! Thank you gentlemen! 😎👍

[@ankitkumarbhoi3360]

We want Cosmos season 3 We love that show and we love NDT.❤❤

[@dbgeek]

Chuck, you guys did a podcast on big numbers and discussed GOOGOL. HOW CAN YOU FORGET?😅😅

[@universemaps]

I love this subject and I'm glad my universe concept was useful here to explain the receding galaxies becoming out of reach. Hope we are able to figure out dark energy nature while I'm still around.

[@mutexS4]

Neil’s demonstration with the rubber band, breaking it and snapping Chuck, made me laugh so hard. Neil is Professor Bunsen to Chuck’s Beaker. Chuck had the same look of fear in his eyes lol 😂

[@Nikosk00]

hello. as we observe the universe one could assume that we are in the center of it. we propably arent. so i have 2 questions 1. since the big bang, shouldn't some galaxies or even galaxy clusters fly in the same difection as ours? i do know about the expansion of space but shouldnt we have more company? take a bag full of balls and smash it, some would move up together. is the expansion of the universe that big it can overtake the gravity of massive galaxies ? 2. are galaxy clusters going to disperce in the future and only lone galaxies will remain or are there any clusters with stonger gravitational pull than that of the expansion of the universe?

[@sose6255]

they are so wholesome together

[@ktsondru108]

This is a good one 👍

[@jakubtichy1692]

A Simple sentence like"A page od the universe have been removed and they will not even know IT." Is making me think If we could miss out on something important

[@kavorka8855]

please talk about the limits of one can travel in the known universe given travelling at the speed of light and infinite time. I already know even with the given one still can't see most of the universe.

[@akramsaleh2031]

Hello professor, its nice and honor to watching and hearing you . I have 2 questions if you mind to answer : 1_If we have a pool for swimming in space and closed from above to avoid water out can we swim and how much mass of body inside ? 2_on space ,o'clock tik tok tik tok will move slowly or normal , and a compass will take or show direction ? I'm Akram Saleh from Saudi Arabia

[@Mark_Bridges]

I'm not a professor but I think I can answer: 1. Yes you can swim in a pool in zero gravity, however you will need scuba tanks or a similar way to breathe because the water will not stay on the bottom of the tank (in zero gravity, there is no down or up). So you can't come up for air, there is no 'up'. The water's surface tension will make it cling to your face, instead of falling off your face due to gravity like it does on Earth. Swimming in zero gravity is very dangerous. "how much mass of body inside" : Mass does not change when you go to space, weight does. Weight is the force gravity puts on a mass. In space with the rocket engine switched off everything is weightless, the same would apply when swimming. However you and the water would still have the same mass as on Earth. 2. Gravity makes time run slower. Clocks therefore run a bit faster in space compared to on Earth's surface. The difference is very small, you need a special atomic clock to measure the difference, however people have put atomic clocks on aircraft and flew them around for a while and noted the small time difference so the effect has been proven. 3. A compass works by indicating the direction of a magnetic field. Earth's magnetic field extends a long way into space so a compass should work many hundreds or thousands of kilometres above the earth. A compass isn't accurate near the magnetic poles on the Earth's surface, it will be even less accurate near the poles in space, but otherwise should work until you go far enough away to exit the magnetic field. Hi from Australia.

[@akramsaleh2031]

We want explain from your explored if you not mind, please

[@user-tw4yt3jo4g]

Wow!! Neil finished with an idea I had back in elementary school when I first learned about the Big Bang. I asked my teacher if it worked like a rubber band and would snap back - and could that create multiple big bangs? With the expansion, it's unlikely unless dark matter isn't causing the expansion but rather we are caught in a state of expansion caused by the force of the Big Bang and we have yet to see it slow down. I think the idea of multiple big bangs was termed Eternal Inflation or something - where there was the idea of a "loaf" that is expanding and creating multiple universes. I wonder if the expansion does actually slow and the thermo end is what occurs, would our universe just melt back into the loaf?

[@joshmasters2572]

Listened to this in bed before fallingasleep. Laughed at the end

[@sergio0zapata]

Y’all are hilarious! Love this show !