Should We Build a Dyson Sphere? | Space Time | PBS Digital Studios


Comments • 4 599

  • Jay Pearce
    Jay Pearce  3 days back

    We (humans) tend to get ahead of ourselves. We ought to develop necessary technology first before considering the grand plan of Dyson spheres.

    • Vladislavs Dovgalecs
      Vladislavs Dovgalecs  4 days back

      It takes a million to build bike lane (Here in Seattle, WW) yet you want to build a Dyson sphere around a star?!

      • J Dizzle
        J Dizzle  6 days back

        What makes u think we have enuff materials for a Dyson sphere it wuld gave to b the circumference of the earth times 10000. Not possible so stfu about it

        • Kosmos
          Kosmos  6 days back

          Dyson Sphere: *I am INEVITABLE*

          • Arcade Alchemist
            Arcade Alchemist  7 days back

            Does hawkin radiation even exist?

            • Arcade Alchemist
              Arcade Alchemist  7 days back

              Blow up saturn,

              • Jacob Opstad
                Jacob Opstad  1 weeks back

                Well, this is a trip down memory lane to all those hours spent watching Star Trek: the Next Generation. There's an entire episode about a Dyson sphere and they explain the Romulans' engines as working with singularities.

                • Andy Holland
                  Andy Holland  1 weeks back

                  Need Mercury to crash into Venus to make it habitable with its own moon and magnetosphere

                  • justin moore
                    justin moore  2 weeks back

                    Try the moon 1st. Still impossible this day and age.

                    • RupertFoulmouth
                      RupertFoulmouth  2 weeks back

                      If we did harvest mercury, venus, and mars, would that mess with our orbit?

                      • Dominic Mosimann
                        Dominic Mosimann  2 weeks back

                        More than 25% of this video (from 10.13 until the end) is just sponsoring and self-advertising? You're serious?

                        • Kamil Poncki
                          Kamil Poncki  2 weeks back

                          Kugelblitz leakage? A moment ago you said they are 100% effective... So are they? Or do they leak? All theoreatically of course

                          • Berad Casteel
                            Berad Casteel  2 weeks back

                            I'm not sure why we are discussing things that literally have ZERO chance of ever happening. This will literally never be done.

                            • Ben Monday
                              Ben Monday  2 weeks back

                              Build a Dyson Sphere? We can't build a decent washing machine. Oh wait.

                              • Herbert West
                                Herbert West  2 weeks back

                                "It's never aliens unless all other explanations are equally likely" would be the more rational, intellectually honest version of what you said. I have no idea why people who make a living studying all the bizarreness the universe has to offer irrationally hold up their noses at aliens. String Theory, many worlds, fine, aliens woah hold on buddy.

                                • Jason Smith
                                  Jason Smith  2 weeks back

                                  Id be really curious about where we would get all of the materials to do this, and who the hell would pay for them!

                                • Jason Castle
                                  Jason Castle  2 weeks back


                                  • Dennis W.
                                    Dennis W.  2 weeks back

                                    We can’t even get all the people to acknowledge the climate crisis yet care for serious immediate countermeasures. How the fuck could such a failing species evolve enough to build a complex machine like a Dyson sphere? Honest question.

                                    • eric batrez
                                      eric batrez  3 weeks back

                                      Let's finish the wall first...

                                      • Tom Kelsall
                                        Tom Kelsall  3 weeks back

                                        ...not to mention that getting rid of even Mercury on its own would have a profound effect on Earth's own orbit... start talking about Mars and Venus as well and suddenly Earth's no longer habitable.

                                        • Austin Bryan
                                          Austin Bryan  3 weeks back

                                          What makes you think that? Have you tested that in something like Universe Sandbox and compared it to the same amount of years passing with them still being there? This sounds like a baisless claim with no evidence and just pure speculation

                                      • Anthony Pena
                                        Anthony Pena  3 weeks back

                                        I wonder if a type 2 civilization can prevent the heat death of there Earth like planet by absorbing or deflecting excessive heat on there aging G Type star that is roughly a billion years older then our sun, by using either a dyson sphere or swarm by absorbing and controlling the exessive solar energy of its host G type star by setting the heat to levels were heat is constantly stable enough to sustain life? 🤔

                                        • gianfranco Razzeto
                                          gianfranco Razzeto  4 weeks back

                                          We will build a sphere and have Mexico pay for it

                                          • gianfranco Razzeto
                                            gianfranco Razzeto  4 weeks back

                                            We will build a sphere and have Mexico pay for it

                                            • Adili Roge
                                              Adili Roge  4 weeks back

                                              the bad part is that everyone of those planets has a magnetic pull. It could move our earth off course so we would plummet into our sun thus not needing the swarm at all hehe

                                              • Steven Kaeser
                                                Steven Kaeser  4 weeks back

                                                I prefer the concept of Niven’s “Ringworld”.

                                                • Sahail Alvi
                                                  Sahail Alvi  4 weeks back

                                                  Dyson Sphere: I am inevitable

                                                  • Mr Majestic
                                                    Mr Majestic  4 weeks back

                                                    Cannibalise Mercury? You must be nuts.. It would put our solar sistem out of balance.. It crazy that you even suggest it..

                                                    • Concerned Citizen
                                                      Concerned Citizen  1 months back

                                                      it always slightly depresses me when he disregards aliens.
                                                      sometimes, it should be aliens...

                                                      • Concerned Citizen
                                                        Concerned Citizen  1 months back

                                                        i love the arrogance of the scientific community
                                                        ''This is impossible!!!''
                                                        *years later*
                                                        ''This was always possible!!''

                                                        • Austin Bryan
                                                          Austin Bryan  3 weeks back

                                                          Is there something wrong with changing your mind? Would it not be arragont to insist something is impossible no matter what evidence or knowledge or mental viewing angles are presented? This isn't religion, if we have reasons to change our mind, we do.

                                                          *That's what it means to be opened minded.*

                                                          Also when did they say *explicitly* it was *impossible*. Unlikely and impossible are different.

                                                      • K C
                                                        K C  1 months back

                                                        We're so far from building a Dyson sphere we're not qualified to answer this question.

                                                      • Robert Schafer
                                                        Robert Schafer  1 months back

                                                        When was the last time the word "swarm" was used for anything good? Just sayin. You plannin your own demise

                                                        • SouL Shadow
                                                          SouL Shadow  1 months back

                                                          my only problem with these scenarios that consume entire planets for raw materials is the effect that the change is mass location will have on the remaining planets in the system. while a loss of a few rocky inner planets might not cause major changes, even a minor change to the orbit of the earth could potentially have devastating consequences.

                                                          anyone else have thoughts on this?

                                                          • PlushyProductions
                                                            PlushyProductions  1 months back

                                                            I'm hooked to these videos lol

                                                            • LaQuinn Rap God with the Rah-Rah

                                                              Yall sound dumb......the higher the being the less likely itll bleed stars for energy when conserving energy has nothing to do with anything.....
                                                              Energy is the 666 side of things.......use yall noggins......we are akin to roaches........another life form wouldn't even put us in a group because thats moot........

                                                              • Stefan Alenius
                                                                Stefan Alenius  1 months back

                                                                Why do Youngs Experiment (the original Double-Slit Experiment) produce Interference Pattern that is not dislocated while the DCQE experiment gets the interference patterns dislocated to perfectly add up to a blur?

                                                                • Alter Ego
                                                                  Alter Ego  1 months back

                                                                  Matt dismissed Dyson spheres rather too quickly. Surrounding the sun by ultra thin statites would not use that much matter.

                                                                  • Monte D Young
                                                                    Monte D Young  1 months back

                                                                    There you go, trump can put the liners back to work now

                                                                    • Richard Wyant
                                                                      Richard Wyant  1 months back

                                                                      These videos pander to those who would live in fantasy land. These will never be built, humans will be long extinct before they would have the technology to do this

                                                                      • Twrgys Best_Friend
                                                                        Twrgys Best_Friend  1 months back

                                                                        Well actually a type 1 or m1 civilization is a group that can harvest the energy of its home planet. M2 or type 2 is the access to harvest the whole stars energy. And obviously m3 is a whole civilization that can harvest there whole galaxy and beyond. We are barely 80% till we get to m1

                                                                        • Eric S
                                                                          Eric S  1 months back

                                                                          PBS SpaceTime: "Today we discuss the Dyson Swarm".
                                                                          Isaac Arthur's Audience: "That's cute".

                                                                          • Aql Laverix
                                                                            Aql Laverix  1 months back

                                                                            If you think about it ...

                                                                            Were already at 2 because of solar pannels

                                                                            • Damage
                                                                              Damage  1 months back

                                                                              How can we possible build something that big? Look at the size of that damn thing..every mineral on that tiny earth wouldn't come close to that size

                                                                              • Steve Weiser
                                                                                Steve Weiser  1 months back

                                                                                Are Dyson Spheres reliable? My ma said her Dyson is a piece of shit.

                                                                                • MrPooPooJohn
                                                                                  MrPooPooJohn  1 months back

                                                                                  A couple from Texas just robbed a Popeye's at gunpoint for a chicken sandwich. Somehow the Kugelblitz just doesn't seem attainable at our current rate. Donald Trump is also our president.

                                                                                  • Danie van der Westhuizen
                                                                                    Danie van der Westhuizen  1 months back

                                                                                    a Civilization advanced enough to be able to construct something like that, would undoubtedly build something far more efficient, than those massive structures.

                                                                                    • Nerdy Tom
                                                                                      Nerdy Tom  1 months back

                                                                                      So the answer to our energy needs in the future is to build planet eating Van Neumann machines and set them loose in the solar system. What could possibly go wrong.

                                                                                      • MandiShelby
                                                                                        MandiShelby  1 months back

                                                                                        So do the makers of these videos read comments and explain how they plan to know the outcome and consequences versus the advancement or gains that we supposedly could obtain by doing alot of this. The sun is not the only influence to our planet in our solar system let alone galaxy. Each planet within our solar system has it's own influence to ours and the other planets within. So destroying a planet and/or bleeding one dry of its energy there by disrupting everything mentioned the natural cycle can only bring cataclysmic consequences as a
                                                                                        result of the disruption. We know a itty bitty fraction of what's going on on earth and space but since this is such a plausible option how do you answer those questions?

                                                                                        • The Watcher
                                                                                          The Watcher  1 months back

                                                                                          Before I listen to him, he first needs to get A PHD.