How the Universe Will End

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  • čas přidán 20. 05. 2024
  • Neil deGrasse Tyson describes the different prevailing theories on how the universe will end.
    Go to ground.news/startalk to read up on research and stay better informed. Sign up through our link to get 40% off unlimited access this month.
    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?
    Check out our second channel, @StarTalkPlus
    Get the NEW StarTalk book, 'To Infinity and Beyond: A Journey of Cosmic Discovery' on Amazon: amzn.to/3PL0NFn
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    About StarTalk:
    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!
    #StarTalk #neildegrassetyson
    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
  • Věda a technologie

Komentáře • 1,2K

  • @StarTalk
    @StarTalk  Před 20 dny +134

    How do you think the universe will end?

    • @mikeuk666
      @mikeuk666 Před 20 dny +16

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

    • @Grymgar
      @Grymgar Před 20 dny +22

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

    • @dianedl7707
      @dianedl7707 Před 20 dny +9

      hopefully without me.

    • @tankmango7574
      @tankmango7574 Před 20 dny

      With my balls disappearing again

    • @user-pi7gc4wg8k
      @user-pi7gc4wg8k Před 20 dny +10

      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
    @light-master Před 20 dny +482

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

    • @denisebledsoe8836
      @denisebledsoe8836 Před 20 dny +9

      Well said

    • @BaronVonQuiply
      @BaronVonQuiply Před 20 dny +10

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

    • @DSAK55
      @DSAK55 Před 19 dny +3

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

    • @Primitive01
      @Primitive01 Před 18 dny +1

      Strange.

    • @aikspace
      @aikspace Před 18 dny +2

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

  • @abil3362
    @abil3362 Před 19 dny +76

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

  • @Hazar1905
    @Hazar1905 Před 20 dny +111

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

    • @jacobgarcia7918
      @jacobgarcia7918 Před 20 dny +4

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

  • @cindygr8ce
    @cindygr8ce Před 20 dny +38

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

  • @savagepro9060
    @savagepro9060 Před 20 dny +87

    Every time Chuck says: "OK"

  • @n.pstudioanimations8420
    @n.pstudioanimations8420 Před 20 dny +35

    😂 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

  • @R0bilicious
    @R0bilicious Před 20 dny +57

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

    • @marcineren112
      @marcineren112 Před 20 dny +3

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

    • @nilayshekhar999
      @nilayshekhar999 Před 20 dny +1

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

    • @JesseJames83
      @JesseJames83 Před 20 dny

      Neil just forgot who he was talking to

    • @Crunch104
      @Crunch104 Před 20 dny +1

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

    • @sebastronomical
      @sebastronomical Před 20 dny +8

      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

  • @xliquidflames
    @xliquidflames Před 20 dny +40

    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
      @mario98730 Před 19 dny +1

      Dr Chuck!!

    • @MeHomie-qe6cw
      @MeHomie-qe6cw Před 19 dny +5

      10¹⁰⁰ is 1000

    • @purrple.shadows
      @purrple.shadows Před 19 dny +2

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

    • @HarelAvital
      @HarelAvital Před 19 dny +1

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

    • @obiziii
      @obiziii Před 15 dny +3

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

  • @dfwdeadshot9557
    @dfwdeadshot9557 Před 20 dny +24

    Hi star talk thanks for all the great content.

  • @reneonier
    @reneonier Před 20 dny +55

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

    • @EmpyreanLightASMR
      @EmpyreanLightASMR Před 20 dny +9

      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
      @BenJamin-iz6yc Před 20 dny +2

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

  • @CliffordLake
    @CliffordLake Před 20 dny +19

    It ends at a restaurant. Everyone knows that.

    • @Whuzzer
      @Whuzzer Před 20 dny +1

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

    • @CliffordLake
      @CliffordLake Před 20 dny +2

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

    • @mikeuk666
      @mikeuk666 Před 20 dny

      ​@Whuzzer whoooosh that went straight over your head 😂

    • @Whuzzer
      @Whuzzer Před 20 dny

      @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
      @XDeserak Před 20 dny +2

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

  • @BaithNa
    @BaithNa Před 20 dny +9

    Entropy wins in the end 😔

    • @jettmthebluedragon
      @jettmthebluedragon Před 20 dny +1

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

    • @SLIDEMONGERZ
      @SLIDEMONGERZ Před 20 dny

      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
      @jettmthebluedragon Před 20 dny +1

      @@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 😑

  • @lianelindsey1407
    @lianelindsey1407 Před 20 dny +24

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

    • @colonelkurtz2269
      @colonelkurtz2269 Před 13 dny +2

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

  • @RealmsSMPStudios
    @RealmsSMPStudios Před 20 dny +29

    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
      @sillyWillieBilly Před 20 dny +1

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

    • @Parsa.a298
      @Parsa.a298 Před 20 dny +4

      10 to the power of 7600​@@sillyWillieBilly

    • @NicholasLayton
      @NicholasLayton Před 20 dny +7

      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
      @RealmsSMPStudios Před 20 dny +3

      @@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
      @lisam5744 Před 20 dny +2

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

  • @barehope
    @barehope Před 20 dny +6

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

  • @kasahuntilahun6860
    @kasahuntilahun6860 Před 20 dny +13

    love from Ethiopia

  • @DaveQZ85
    @DaveQZ85 Před 20 dny +22

    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.

  • @steinfi3
    @steinfi3 Před 20 dny +6

    Who’s down for ice cream?

  • @YusufKesharia
    @YusufKesharia Před 20 dny +4

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

  • @MoosesValley
    @MoosesValley Před 20 dny +2

    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++

  • @fredinit
    @fredinit Před 20 dny +4

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

  • @simplyme8009
    @simplyme8009 Před 20 dny +6

    Love you both. Stay safe.

  • @IQmates
    @IQmates Před 20 dny +2

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

  • @Grymgar
    @Grymgar Před 20 dny +23

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

  • @PsychiCorey
    @PsychiCorey Před 20 dny +19

    That screech spoke volumes 🤣

  • @nel99999
    @nel99999 Před 20 dny +4

    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
      @user-zh9xm5es5m Před 17 dny

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

  • @WishItWas1984
    @WishItWas1984 Před 18 dny +1

    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
      @ProfGlitch Před 14 dny

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

  • @willieluncheonette5843
    @willieluncheonette5843 Před 20 dny +2

    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.

  • @Cuppa_Doc
    @Cuppa_Doc Před 20 dny +3

    Chucks scream startled my Cats 😂😂😂

  • @BaronVonQuiply
    @BaronVonQuiply Před 20 dny +3

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

  • @ErnieP89
    @ErnieP89 Před 13 dny +1

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

  • @masheldon
    @masheldon Před 20 dny +2

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

  • @Fatty-Biscuits
    @Fatty-Biscuits Před 20 dny +9

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

  • @gusgarcia150
    @gusgarcia150 Před 20 dny +9

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

  • @JeremyHomicki
    @JeremyHomicki Před 20 dny +1

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

  • @michaelccopelandsr7120
    @michaelccopelandsr7120 Před 20 dny +1

    Neil and Chuck for 2024!

  • @jeffrutledge3997
    @jeffrutledge3997 Před 20 dny +3

    Love the content. Thank you

  • @GadZookz
    @GadZookz Před 20 dny +7

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

    • @jettmthebluedragon
      @jettmthebluedragon Před 20 dny +1

      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
      @seanrosenau2088 Před 20 dny +6

      ​@@jettmthebluedragonThat was a gottam joke.

  • @Thrillr
    @Thrillr Před 19 dny +2

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

  • @michelazzo
    @michelazzo Před 20 dny +8

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

  • @The-binge_710
    @The-binge_710 Před 20 dny +5

    Great Content

  • @GuyayeFusa
    @GuyayeFusa Před 14 dny

    the clarity you bring to your subjects is beyond impressive!

  • @Pluckaduck86
    @Pluckaduck86 Před 20 dny +4

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

  • @Bassotronics
    @Bassotronics Před 20 dny +16

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

    • @adolfodef
      @adolfodef Před 20 dny +2

      ^ 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
      @desmondd1984 Před 20 dny +3

      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.

  • @Amadioh
    @Amadioh Před 20 dny +10

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

  • @ryansandlin2550
    @ryansandlin2550 Před 20 dny

    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!

  • @Rick_787
    @Rick_787 Před 20 dny +6

    Fire
    Or
    Ice

  • @Damita-ye2yl
    @Damita-ye2yl Před 20 dny +9

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

  • @IvarKurgarra
    @IvarKurgarra Před 20 dny +1

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

  • @tomhiggins875
    @tomhiggins875 Před 19 dny

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

  • @Ben-311
    @Ben-311 Před 20 dny +3

    Sounds more reasonable than the sky wizard coming back.

  • @SachinKumar-pf2hy
    @SachinKumar-pf2hy Před 20 dny +4

    It's 3:30 am in India and here I am😅

  • @jakubtichy1692
    @jakubtichy1692 Před 6 dny

    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

  • @electrovoyage2613
    @electrovoyage2613 Před 20 dny +2

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

  • @nursejim2129
    @nursejim2129 Před 20 dny +3

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

  • @onemercilessming1342
    @onemercilessming1342 Před 20 dny +6

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

  • @ankitkumarbhoi3360
    @ankitkumarbhoi3360 Před 20 dny +1

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

  • @tubruton
    @tubruton Před 20 dny +5

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

  • @immunitycorrupts3641
    @immunitycorrupts3641 Před 20 dny +8

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

  • @dawnhansen7886
    @dawnhansen7886 Před 20 dny

    Educational Entertainment
    to the MAX ❗️
    I Love StarTalk ❤

  • @danielt167
    @danielt167 Před 20 dny +2

    You can tell he’s heard these scenarios from Neil around ten different times the way he’s finishing the sentences for Neil 😂

  • @elizabethpetrie3066
    @elizabethpetrie3066 Před 20 dny +4

    U maker a good serious comedy team! Love it❤

  • @ShmackHarv
    @ShmackHarv Před 20 dny +4

    Bro 5:18 😂😂😂😂😂😂😂😂😂😂😂😂

    • @e-money5085
      @e-money5085 Před 20 dny

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

  • @albertdehn8381
    @albertdehn8381 Před 20 dny +1

    Thanks for sharing 😀👍

  • @_executie
    @_executie Před 20 dny

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

  • @laveeshtomar
    @laveeshtomar Před 20 dny +325

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

  • @juskahusk2247
    @juskahusk2247 Před 20 dny +11

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

    • @sanra167
      @sanra167 Před 20 dny +1

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

    • @swiftbow2110
      @swiftbow2110 Před 20 dny +1

      No Sh!$

    • @TBlack-qb1nb
      @TBlack-qb1nb Před 20 dny

      Very optimistic 😂

    • @BaithNa
      @BaithNa Před 20 dny

      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
      @vanessakitty8867 Před 20 dny +1

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

  • @zdoll12
    @zdoll12 Před 5 dny

    Awesome treadmill information and motivation!!!

  • @anthonyhopper7830
    @anthonyhopper7830 Před 20 dny +2

    Great podcast!

  • @tankmango7574
    @tankmango7574 Před 20 dny +114

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

  • @Crazydad-br3jb
    @Crazydad-br3jb Před dnem

    this is awesome, and the animations too!!!

  • @AT-yz4eo
    @AT-yz4eo Před 20 dny

    That intro was the stuff of nightmares. Kudos editor!

  • @Ramkumar-uj9fo
    @Ramkumar-uj9fo Před 13 dny

    Neil is accepting Level 8 Stellar in Technology(StarTalk). More complex level than me. Next Level 9 for him is GalaxyTalk. Then it is over on the Technology level.
    Levels
    1. **Stone Tools**: Level 1
    2. **Agriculture**: Level 2
    3. **Industrial Revolution**: Level 3
    4. **Electricity and Telecommunications**: Level 4
    5. **Computers and Internet**: Level 5
    6. **Space Travel and Colonization**: Level 6
    7. **Advanced AI and Singularity**: Level 7
    8. **Interstellar Energy Harnessing**: Level 8
    9. **Galactic Energy Harnessing**: Level 9

  • @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.

  • @joshmasters2572
    @joshmasters2572 Před 13 dny

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

  • @AceSpadeThePikachu
    @AceSpadeThePikachu Před 20 dny

    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.

  • @Dj3ndo
    @Dj3ndo Před 8 dny

    I love their relationship! It's almost like father and son!

  • @garypeters2827
    @garypeters2827 Před 17 dny

    I searched what 10^100 looks like written out, and my head hurts from trying to comprehend it.

  • @jasonpickens9839
    @jasonpickens9839 Před 19 dny +1

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

  • @eypower8647
    @eypower8647 Před 20 dny +1

    How fascinating! I'm wondering if dark matter could be the substance our universe is originally made of. I mean a kind of infinity, where dark matter serves as a base for everything. If I understand correctly, the universe produces this kind of matter. So everything would transform into dark matter. And if we assume that dark matter is expanding itself (not space), we could also assume that it could produce matter while tearing itself apart...

  • @kyuzodarkwolf5559
    @kyuzodarkwolf5559 Před 12 dny

    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.

  • @shalini3382
    @shalini3382 Před 12 dny

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

  • @lovelywaz
    @lovelywaz Před 20 dny +1

    I am gonna set my alarm clock 2 mins before the ending, just in case if I don't wake up and miss the fireworks! 🤩🤩

  • @khankuet
    @khankuet Před 3 dny

    Its like a baloon which is expanding and the dots are going further from each other, at max expansion the baloon will pop and the dots will be together in 1 singular dot , then another bigbang

  • @ronalddelrosario7405
    @ronalddelrosario7405 Před 20 dny

    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! ;)

  • @user-hf1tv1fl2o
    @user-hf1tv1fl2o Před 20 dny +1

    I think if our universe is indeed finite, then the big crunch is most likely.
    Because unless our current universal iteration is the first then something either caused it externally or it's cyclical and i'm not going to add more issues with the external idea.
    Now just as in the big freeze eventually we couldn't see other galaxies or stars it's possible in our time we simply cannot observe the collapse because we have not yet reached that phase in our universe similarly.
    However the evidence implies it's likelihood, because saying currently we somehow exist in the history of all existences final end is ridiculously improbable, statistically when all data is accounted for the cyclical idea is astronomically more likely given our understanding.

  • @colonelkurtz2269
    @colonelkurtz2269 Před 13 dny

    Light thinks it travels faster than anything but it is wrong. No matter how fast light travels it finds the darkness has always got there first and is waiting for it.
    Terry Pratchett RIP

  • @akramsaleh2031
    @akramsaleh2031 Před 20 dny

    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
      @Mark_Bridges Před 20 dny

      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
      @akramsaleh2031 Před 20 dny

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

  • @dbgeek
    @dbgeek Před 12 dny

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

  • @universemaps
    @universemaps Před 20 dny

    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.

  • @JohnnyBlane
    @JohnnyBlane Před 5 dny

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

    • @user-mr5xg2nd8p
      @user-mr5xg2nd8p Před 3 hodinami

      Johnnyblane
      Universe expansion in quran
      czcams.com/video/UUWdSKA_u9Y/video.htmlsi=I3-LWzB1RKwoyAqR

  • @tyrant_hermit
    @tyrant_hermit Před 20 dny +4

    Niel : "You can do the math"
    Lord Nice : "I can't"

    • @mikeuk666
      @mikeuk666 Před 20 dny

      Maths

    • @jettmthebluedragon
      @jettmthebluedragon Před 20 dny +1

      You can do the math for the universe being infinite you can do the math for a finite universe numbers don’t physically exist and they will NEVER exist 😑you are worry about the universe never existing in a goggle years from now but you scientists failed to mention what happens a google years BEFORE we were born before we were born 🙃

  • @sofronije74
    @sofronije74 Před 20 dny +1

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

  • @mikekolokowsky
    @mikekolokowsky Před 3 dny +1

    “Ten to the 100? That’s a thousand.”
    Neil died inside at that moment.

    • @EnderCats8
      @EnderCats8 Před 3 dny

      so did i

    • @hogenmogen8545
      @hogenmogen8545 Před 3 dny

      @@EnderCats8 Neil is like "I don't know if we can be friends anymore."

  • @theElrin
    @theElrin Před 19 dny

    Looking up makes me happy.

  • @kevincronk7981
    @kevincronk7981 Před 19 dny +1

    I feel like we have no right to speculate about such long timescales. We already know that we don't understand dark matter and dark energy, we have no right to assume there isn't some other dark thing we have never discovered that could upend all of this. And similarly to how, if the universe keeps expanding, we will someday not be able to see anything outside of our own galaxy, we have no way of knowing if there is something else we can no longer see and there's another page of history that was ripped out and we can never know about

  • @MrBibobs
    @MrBibobs Před 10 dny

    Thanks guys!

  • @user-tw4yt3jo4g
    @user-tw4yt3jo4g Před 20 dny

    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?

  • @oneofus6924
    @oneofus6924 Před 20 dny +2

    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.