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No Dark Matter = Proof of Dark Matter? [14:37]

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You can learn more about CuriosityStream at https://curiositystream.com/spacetime We’ve been failing to detect dark matter for decades. Finally, the latest failure to detect dark matter may have actually proved its existence. One of these is true:... You can learn more about CuriosityStream at https://curiositystream.com/spacetime We’ve been failing to detect dark matter for decades. Finally, the latest failure to detect dark matter may have actually proved its existence. One of these is true: either most of the matter in the universe is invisible and formed of something not explained by modern particle physics OR our understanding of gravity is completely broken. The debate over which is true has raged for decades, but may finally have been resolved in an unlikely way: the proof that dark matter exists, and really is an exotic, unknown substance, may have come from the discovery of two galaxies that appear to have no dark matter at all. Today on Space Time Journal Club we’ll look at the papers that reveal this discovery:Check out the new Space Time Merch Store!https://pbsspacetime.com/ Support Space Time on Patreonhttps://www.patreon.com/pbsspacetime Need a Refresher to Fully Understand the Holographic Principle?https://www.youtube.com/playlist?list... #darkmatter #astrophysics #spacetime Hosted by Matt O'DowdWritten by Matt O'DowdGraphics by Kurtis RossDirected by Andrew KornhaberProduced By: Kornhaber BrownThe effect of dark matter was first noticed in 1933, when the legendary Swiss astrophysicist Fritz Zwicky noticed that the galaxies in the Coma cluster were moving too quickly to remain gravitationally bound within that cluster. He guessed the presence of “dunkle m aterie” – a dark matter invisible to his telescope but whose gravitational effect held the cluster together. As with many of Zwicky’s predictions – like the existence of neutron stars and gravitational lensing - this wasn’t taken seriously until decades later. The hunt for dark matter began in earnest after the early 70s when Vera Ruben, discovered that the rotation rates of spiral galaxies were too fast given the mass of their visible stars alone. They should throw themselves to pieces spinning that quickly – that is, unless, a gravitational force of unseen origin was holding them together. Special thanks to our Patreon Big Bang, Quasar and Hypernova Supporters: Big Bang:Anton LifshitsDavid NicklasFabrice EapJuan BenetQuasar:Mark RosenthalTambe BarsbayVinnie FalcoHypernova: Antoine Brugierchuck zegarDanton SpiveyDonal BotkinEdmund FokschanerJohn HofmannJordan YoungJoseph SalomonekkmMark HeisingMatthewMatthew O'ConnorThanks to our Patreon Gamma Ray Burst Supporters: Adrien MoyneuxAlexander LazerevAlexey EromenkoAndrewas NautschAntonio RuizBradley JenkinsBrandon LabonteBuruk AregawiCarlo MogaveroDaniel LyonsDavid BehtalaDustan JonesGeoffrey ShortJames FlowersJames QuinteroJohn FunaiJohn PollockJonahJoseph DillmanJoseph EmisonJosh ThomasKevin WarneKyle HoferMalte UblMark VasileNathan HitchingsNicholas RoseNick VirtueRatfeastRyan JonesScott GossettSigurd Ruud FrivikTim CrookhamTim StephaniTommy MogensenYurii Konovaliukسلطان الخليفي

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Space Outer Space Physics Astrophysics Quantum Mechanics Space Physics PBS Space Time Time PBS Space Time Matt O’Dowd Astrobiology Einstein Einsteinian Physics General Relativity Special Relativity Dark Energy Dark Matter Black Holes The Universe Math Science Fiction Calculus Maths Holographic Universe Holographic Principle Holography Holographs Reality Consciousness
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