The Mystery That Keeps Neil deGrasse Tyson Up At Night

  • Published: 06 January 2018
  • There's one terrifying mystery of the universe that astrophysicist and 'Astrophysics for People in a Hurry' author Neil deGrasse Tyson loses sleep over.

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Comments • 10 161

  • Inquisitive_Transient
    Inquisitive_Transient  14 hours back

    I thought dark matter was already explained through higher spacial dimensions?

    • majorPhysics
      majorPhysics  17 hours back

      Team RC also has alot of fingers in little boys... XD

      • JockyRhonson
        JockyRhonson  18 hours back

        Neil Degrasse Tyson is now on my list of voices I want as a GPS. Yet Morgan Freeman still tops him.

        The current list is as follows:

        1. Morgan Freeman
        2. James Earl Jones
        3. Neil Degrasse Tyson

        • Leon Lind
          Leon Lind  22 hours back

          thats annoying

          • Rayagoldendropofsun Sunlightelectrorays

            Neil don't know the fact of downward falling motion !

            • NoahBoat9000
              NoahBoat9000  2 days back

              Tyson: 9 is irrelevant to the whole universe
              Colbert: woah don’t blow my mind yet

              • Funny Guy
                Funny Guy  2 days back

                The universe isn't expanding!! I'm here in Bensonhurst Brooklyn and Brooklyn isn't expanding 🍷🍝🇮🇹

                • edwin colon
                  edwin colon  3 days back

                  I finally figured it out Neil is a real life herman monster just really really smart

                  • nickwithoutak
                    nickwithoutak  3 days back

                    I can honestly say I’m brain fucked. Like what if the universe will grown so much that future humans will think our galaxy as the universe and if we perceive what used to be a galaxy as the universe. It could be the weed or I’m rlly having some prolific thoughts

                    • nickwithoutak
                      nickwithoutak  15 minutes back

                      sagar deb bro idek how them fellas believe that shit. I’d be surprised if they have 2 brain cells working at any given moment

                    • sagar deb
                      sagar deb  9 hours back

                      Hopefully they don't get brainwashed like the flat earthers

                  • # 1
                    # 1  4 days back

                    Man said 🤔"we don't know what we don't know, and that keeps me up at night" 😂🤣 brilliant

                    • Big Man
                      Big Man  4 days back


                      "And the pope said we gotta fix this"
                      'The pope fixed it?'
                      " *_P O P E_* "

                      • CH
                        CH  5 days back

                        He sounds like my drunk uncle Tony.

                        • eric andrews
                          eric andrews  5 days back

                          here's a mystery that keeps me up at do democrats keep getting re elected?

                          • In the garage
                            In the garage  5 days back

                            Wow, that's astronomical.....a astrophysicist actually admitting "we dont even know what we dont know". Mark this date. 2 Timothy 3;7. That's all I'm saying.

                            • MrGrantly87
                              MrGrantly87  2 days back

                              You realise he was referring to the fact that the galaxies will become unable to be observed, right? That verse you referenced is entirely irrelevant. If we relied on the bible, we would still think the earth is 6,000 years old.

                              What you are noticing here is Neil being intellectually honest, rather than using confirmation bias by referring back to one's holy book.

                          • Brotuberplayer309 #LOGIC

                            Neil explains everything perfectly I understand everything

                            • drdvs69
                              drdvs69  6 days back

                              " We don't know ... what we don't know". Makes you think , makes you wonder. Hmmmm..

                              • ZestyTable 21
                                ZestyTable 21  6 days back

                                "The universe is vaster than anything else in our universe"

                                That's a mind fuck

                                • Worst Producer
                                  Worst Producer  6 days back

                                  This guy is the one that gets everyone mad at hollidays by saying random facts and disrespecting every religion lol

                                  • BLC
                                    BLC  6 days back

                                    I get to correct Neil deGrasse Tyson. Newfoundland is on a half hour time zone so technically they celebrate New Years 25 times. Lol

                                    • Stuart Foster
                                      Stuart Foster  6 days back

                                      The mystery that keeps Neil up at night might be his feelings ? OF GOD ! as most Scientific theories of the Universe can never be proved !

                                      • Shipuden 889
                                        Shipuden 889  6 days back

                                        Omg yes even in high school

                                        • Ezequiel McFarlan
                                          Ezequiel McFarlan  6 days back

                                          I bet he thinks god is real lmao

                                          • E Tan
                                            E Tan  7 days back

                                            Lmao, What an imagination this guy has. You have to be creative and improv like a standup comedian when u sell "fake space" dreams

                                            • DaShirtBoy
                                              DaShirtBoy  7 days back


                                              • DaShirtBoy
                                                DaShirtBoy  7 days back

                                                In 2020, he's not wrong about New Year's. If we're going to celebrate ANY single moment in time, we need to do it right; at 00:00:00 on January 1st, in Greenwich Mean Time; and just be done with it.

                                                • TheBarbie Show
                                                  TheBarbie Show  1 weeks back

                                                  I like to watch these types of videos for fun, learning a lot more about what I didn't already know, "we don't know, what we don't know", he is definitely rocking that astronomy tie!!!!!! I think the mystery that keeps him awake at night might now keep me lying awake at night wondering the same thing.!!!

                                                  • Dxzie h
                                                    Dxzie h  1 weeks back

                                                    I need neil as my teacher

                                                    • Foe Jnr
                                                      Foe Jnr  1 weeks back

                                                      Colbert should've complimented his tie

                                                      • Logic Skies
                                                        Logic Skies  1 weeks back

                                                        Where do I get that tie

                                                        • Carl Parish
                                                          Carl Parish  1 weeks back

                                                          The Spirit world is what he trying to understand and figure out!!

                                                          • Universal _Wisdom
                                                            Universal _Wisdom  1 weeks back

                                                            The only problem I have with Neil is that he religiously interrupts people. I know it’s a genius thing, but it sets awkward tension at least for me. Other than that the dude is literally flawless. So interesting to listen to.

                                                            • Lesego Rapoo
                                                              Lesego Rapoo  1 weeks back

                                                              How am I the only person who finds Neil deGrasse Tyson annoying. He's career is pretty much, "Show them you're a nerd" . . . Ask him a simple question he goes on this explanatory rant, with over-enthusiastic hand gestures, about things that have nothing to do with the question.

                                                              • honeysucklecat
                                                                honeysucklecat  1 weeks back

                                                                Sad that there are trumptards on here spitting up their normal ration of hate and insults - and in a few cases, really blatant racism. Yeah, if you read enough of the comments, you'll find trumptards hating on Neil because he's black.
                                                                But this should come as no surprise to anyone who pays attention.
                                                                That's what trumpler has given us - a legion of hate mongering assholes roaming the internet pushing hate.

                                                                • Lucky Seven
                                                                  Lucky Seven  1 weeks back

                                                                  NDT is amazing to listen to. I wish I had him as a mentor tbh

                                                                  • The Manhunter
                                                                    The Manhunter  1 weeks back

                                                                    7:03 for the title to be answered

                                                                    • RedDeadTryhardBichFromGTA Yuh

                                                                      u succ

                                                                      • Dick Strangler
                                                                        Dick Strangler  2 weeks back

                                                                        The chemistry between Neil and Stephen is so great

                                                                        • Anthony Johnson
                                                                          Anthony Johnson  2 weeks back

                                                                          Is that mystery where his chin went?

                                                                          • Salim El
                                                                            Salim El  2 weeks back

                                                                            I think the presenter is fake and got that fake fun that is cringy.

                                                                            • Salim El
                                                                              Salim El  2 weeks back

                                                                              like the guest but hate the presenter.

                                                                              • Ace The FireDragon
                                                                                Ace The FireDragon  2 weeks back

                                                                                About a chapter of the universe being ripped. Here is a hypothesis. If universes expand so fast to the point of which we can’t observe galaxies anymore, the civilization will at some point figure out that our universe is expanding by looking at the stars in our galaxy. They will then conclude that our galaxy started with a bang. So they will think our galaxy, makes up the entire universe. What if the same is true for us now? What if there was something before the Big Bang? The galaxy might have expanded so far that we are unable to observe anything beyond, and therefore think that it all started with a bang?

                                                                                • jason marler
                                                                                  jason marler  2 weeks back

                                                                                  I'd like to know where did they get the space to put all this space.

                                                                                  • jason marler
                                                                                    jason marler  2 weeks back

                                                                                    What if c.a.t really spelled dog.

                                                                                    • D C
                                                                                      D C  2 weeks back

                                                                                      I would guess that our new year DOES have some astronomical significance - it comes not long after the shortest day of the year (shortest day for the northern hemisphere - the hemisphere in which our Gregorian calendar was created). That day is of course December 21st (usually). So I guess ancient people were like "let's mark the occasion of the winter solstice, then maybe a week or so after that we'll have a new year".

                                                                                      • Andre McFlurry
                                                                                        Andre McFlurry  2 weeks back

                                                                                        Imagine he did mushrooms

                                                                                        • C. Anthony.L.N
                                                                                          C. Anthony.L.N  2 weeks back

                                                                                          whose watching this now that dark energy has been debunked.

                                                                                          • Casey Standridge
                                                                                            Casey Standridge  2 weeks back

                                                                                            When was that released? I haven't heard anything change about the dark energy hypothesis since the 1990s.

                                                                                        • QPDS
                                                                                          QPDS  2 weeks back

                                                                                          Today.... indulgences are sold by academic televangelists

                                                                                          • Yehya Eldidi
                                                                                            Yehya Eldidi  2 weeks back

                                                                                            I completely understand this theory