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Best Cosmology & astrophysics videos, as recommended on Hacker News

95 videos about cosmology & astrophysics that Hacker News commenters keep recommending, mentioned between 2009 and 2026. Mostly explainer, lecture, interview. Channels that come up most: PBS Space Time, Kurzgesagt – In a Nutshell, Isaac Arthur, ScienceClic English. Sorted by how consistently HN recommended them over the years.

The most recommended is TIMELAPSE OF THE FUTURE: A Journey to the End of Time (4K): HN people recommend it as a stunning, mind-bending and existentially humbling view of deep time, and it appears on lists of favorite YouTube videos.

• documentaryTIMELAPSE OF THE FUTURE: A Journey to the End of Time (4K)melodysheep · 13 HN recommenders · 2019–2025
• explainerThe Solar Gravitational Lens will Map Exoplanets. Seriously.Launch Pad Astronomy · 10 HN recommenders · 2020–2025
• documentaryPowers of Ten™ (1977)Eames Office · 9 HN recommenders · 2012–2025
• lecture'A Universe From Nothing' by Lawrence Krauss, AAI 2009Richard Dawkins Foundation for Reason & Science · 7 HN recommenders · 2009–2024
• explainerA new way to visualize General RelativityScienceClic English · 8 HN recommenders · 2020–2026
• otherCarl Sagan - Pale Blue Dotcarlsagandotcom · 5 HN recommenders · 2011–2026
• explainerThe REAL Possibility of Mapping Alien Planets!PBS Space Time · 4 HN recommenders · 2023–2024
• explainerStar Size Comparison 2morn1415 · 5 HN recommenders · 2016–2022
• explainerWhat Everyone Gets Wrong About GravityVeritasium · 7 HN recommenders · 2020–2025
• explainerHow Far Are The Nearest Stars?Cody'sLab · 3 HN recommenders · 2019–2025
• lectureLeonard Susskind on The World As Hologram | TVO DocsTVO Docs · 7 HN recommenders · 2013–2021
• explainerCivilizations at the End of Time: Iron StarsIsaac Arthur · 4 HN recommenders · 2017–2022
• explainer4.5 Billion Years in 1 HourKurzgesagt – In a Nutshell · 4 HN recommenders · 2023–2025
• explainerTurning Earth Into a Telescope | The TerrascopeCool Worlds · 4 HN recommenders · 2020–2025
• explainerHow to Move the Sun: Stellar EnginesKurzgesagt – In a Nutshell · 3 HN recommenders · 2020–2025
• explainerHow Time Becomes Space Inside a Black Hole | Space TimePBS Space Time · 4 HN recommenders · 2018–2025
• explainerdark matter is not a theoryAngela Collier · 5 HN recommenders · 2023–2024
• explainerCivilizations at the End of Time: Black Hole FarmingIsaac Arthur · 4 HN recommenders · 2018–2023
• explainerHow to Understand What Black Holes Look LikeVeritasium · 8 HN recommenders · 2019–2021
• lectureEntanglement and Complexity: Gravity and Quantum MechanicsStanford Institute for Theoretical Physics · 4 HN recommenders · 2015–2023
• explainerHow To Terraform Venus (Quickly)Kurzgesagt – In a Nutshell · 4 HN recommenders · 2021–2026
• explainerThe Moon's Orbit is WEIRDminutephysics · 4 HN recommenders · 2024–2026
• lectureBlack hole Firewalls - with Sean Carroll and Jennifer OuelletteThe Royal Institution · 3 HN recommenders · 2017–2022
• explainerShould We Colonize Venus Instead of Mars?PBS Space Time · 4 HN recommenders · 2016–2022
• explainerThe Fermi Paradox CompendiumIsaac Arthur · 3 HN recommenders · 2017–2021
• tutorialTelescope Building with John DobsonDobson Astro-Initiatives · 4 HN recommenders · 2017–2025
• otherVLT (Very Large Telescope) HD Timelapse FootageNicolas Bustos · 2 HN recommenders · 2017–2026
• explainerThe Crisis in CosmologyPBS Space Time · 3 HN recommenders · 2019–2021
• explainerIs The Alcubierre Warp Drive Possible? | Space Time | PBS Digital StudiosPBS Space Time · 3 HN recommenders · 2020–2023
• explainerAre Space and Time An Illusion?PBS Space Time · 3 HN recommenders · 2016–2020
• explainerWhat Happens at the Event Horizon? | Space Time | PBS Digital StudiosPBS Space Time · 3 HN recommenders · 2019–2025
• explainerHawking RadiationPBS Space Time · 3 HN recommenders · 2019–2024
• explainerThe Halo DriveCool Worlds · 3 HN recommenders · 2019–2023
• explainerWhy is the Solar System Flat?minutephysics · 3 HN recommenders · 2014–2025
• explainerDo Events Inside Black Holes Happen?PBS Space Time · 5 HN recommenders · 2016–2021
• explainer'Oumuamua Is Not AliensPBS Space Time · 3 HN recommenders · 2018–2021
• explainerThe Fermi Paradox: Dark Forest TheoryIsaac Arthur · 2 HN recommenders · 2019–2024
• demoThe Known Universe by AMNH #datavisualizationAmerican Museum of Natural History · 3 HN recommenders · 2010–2020
• lectureLeonard Susskind | "ER = EPR" or "What's Behind the Horizons of Black Holes?" - 1 of 2Stanford Institute for Theoretical Physics · 3 HN recommenders · 2015–2023
• demoPtolemy and Homer (Simpson)Santiago Ginnobili · 3 HN recommenders · 2013–2022
• explainerArcologiesIsaac Arthur · 3 HN recommenders · 2018–2022
• explainerWhy Alien Life Would be our Doom - The Great FilterKurzgesagt – In a Nutshell · 3 HN recommenders · 2018–2024
• explainerTerence Tao on the cosmic distance ladder3Blue1Brown · 2 HN recommenders · 2025–2026
• commentaryharvard & aliens & crackpots: a disambiguation of Avi LoebAngela Collier · 5 HN recommenders · 2023–2025
• podcastUnlocking UAP Mysteries: Economics, Aliens, and The Great Filter | Merged EP0109Merged Podcast · 3 HN recommenders · 2023–2023
• explainerThe Holographic Universe ExplainedPBS Space Time · 2 HN recommenders · 2019–2022
• interviewTurning the Sun Into a Giant Telescope with Dr. Slava TuryshevFraser Cain · 3 HN recommenders · 2022–2024
• commentarythat dark matter video aged like milkAngela Collier · 3 HN recommenders · 2024–2024
• courseThe Maths of General Relativity (1/8) - Spacetime and WorldlinesScienceClic English · 3 HN recommenders · 2021–2023
• lectureTerence Tao: The Cosmic Distance Ladder, UCLAUCLA · 2 HN recommenders · 2022–2025
• explainerFermi Paradox: The Dyson Dilemma v2.0Isaac Arthur · 2 HN recommenders · 2019–2021
• explainerThe Absurdity of Detecting Gravitational WavesVeritasium · 3 HN recommenders · 2017–2019
• lectureWhy is Time a One-Way Street?Santa Fe Institute · 2 HN recommenders · 2014–2022
• explainerThe Hubble Ultra Deep Field in 3DDeep Astronomy · 2 HN recommenders · 2012–2022
• interviewAvi Loeb: Aliens, Black Holes, and the Mystery of the Oumuamua | Lex Fridman Podcast #154Lex Fridman · 2 HN recommenders · 2021–2023
• explainerThe Fermi Paradox — Where Are All The Aliens? (1/2)Kurzgesagt – In a Nutshell · 2 HN recommenders · 2017–2020
• explainerThe Geometry of CausalityPBS Space Time · 2 HN recommenders · 2017–2022
• explainerDark Matter: The Situation has ChangedSabine Hossenfelder · 2 HN recommenders · 2021–2023
• explainerI Think Faster Than Light Travel is Possible. Here's Why.Sabine Hossenfelder · 2 HN recommenders · 2023–2023
• explainerThe Black Hole Information ParadoxPBS Space Time · 2 HN recommenders · 2018–2021
• explainerTiny meteorites are everywhere. Here’s how to find them.Verge Science · 3 HN recommenders · 2019–2024
• interviewSir Roger Penrose & William Lane Craig • The Universe: How did it get here & why are we part of it?Premier Unbelievable? · 2 HN recommenders · 2020–2025
• explainerWhy Quantum Information is Never DestroyedPBS Space Time · 2 HN recommenders · 2019–2021
• explainerSuperluminal Time Travel + Time Warp Challenge AnswerPBS Space Time · 2 HN recommenders · 2018–2022
• explainerWhat Happens After the Universe Ends?PBS Space Time · 2 HN recommenders · 2020–2023
• interviewThe Case for String Theory - Sixty SymbolsSixty Symbols · 2 HN recommenders · 2017–2022
• explainerBlack Hole Star – The Star That Shouldn't ExistKurzgesagt – In a Nutshell · 2 HN recommenders · 2022–2025
• explainerWe all move at the Speed of LightScienceClic English · 2 HN recommenders · 2020–2024
• explainerHumanity was born way ahead of its time. The reason is grabby aliens.Rational Animations · 2 HN recommenders · 2021–2022
• explainerThe Unreasonable Efficiency of Black Holesminutephysics · 2 HN recommenders · 2020–2025
• explainerThe Black Hole Bomb and Black Hole CivilizationsKurzgesagt – In a Nutshell · 2 HN recommenders · 2018–2021
• explainerTRUE Limits Of Humanity – The Final Border We Will Never CrossKurzgesagt – In a Nutshell · 3 HN recommenders · 2021–2024
• explainerWhat would we see if we fell into a Black Hole?ScienceClic English · 1 HN recommender · 2022–2025
• talkSomething Deeply Hidden | Sean Carroll | Talks at GoogleTalks at Google · 1 HN recommender · 2020–2023
• explainerDid Time Start at the Big Bang?PBS Space Time · 1 HN recommender · 2020–2024
• explainerDoes Time Cause Gravity?PBS Space Time · 1 HN recommender · 2021–2023
• talkvon Neumann probes, Dyson spheres, exploratory engineering and the Fermi paradoxFuture of Humanity Institute · 1 HN recommender · 2014–2026
• explainerAre Black Holes Actually Fuzzballs?PBS Space Time · 1 HN recommender · 2022–2023
• explainerHow to Detect Extra DimensionsPBS Space Time · 3 HN recommenders · 2018–2020
• explainerWhat If Alien Life Were Silicon-Based?PBS Space Time · 1 HN recommender · 2023–2025
• explainerThese are the asteroids to worry aboutVeritasium · 1 HN recommender · 2021–2023
• explainerThis Black Hole Could be Bigger Than The UniverseKurzgesagt – In a Nutshell · 1 HN recommender · 2024–2024
• explainerMatrioshka Brains: Star-Powered ComputersIsaac Arthur · 1 HN recommender · 2017–2023
• explainerDyson SpheresIsaac Arthur · 1 HN recommender · 2017–2022
• explainerAncient Life as Old as the UniverseKurzgesagt – In a Nutshell · 1 HN recommender · 2023–2024
• explainerAre There Lost Alien Civilizations in Our Past?Kurzgesagt – In a Nutshell · 1 HN recommender · 2023–2024
• interviewThe Pope's Astronomer - Sixty SymbolsSixty Symbols · 1 HN recommender · 2020–2025
• explainerJWST just made the "Crisis in Cosmology" WORSEDr. Becky · 2 HN recommenders · 2022–2024
• explainerCould The Universe Be Inside A Black Hole?PBS Space Time · 1 HN recommender · 2022–2023
• demoNew Supercomputer Simulation Sheds Light on Moon’s OriginNASA's Ames Research Center · 2 HN recommenders · 2023–2024
• musicPeter Mulvey Performs Vlad the AstrophysicistPeter Mulvey · 1 HN recommender · 2021–2021
• explainerLaniakea: Our home superclusternature video · 1 HN recommender · 2022–2023
• explainerHow to Win an Interstellar WarKurzgesagt – In a Nutshell · 1 HN recommender · 2023–2025
• explainerWhat if Humans Are NOT Earth's First Civilization? | Silurian HypothesisPBS Space Time · 1 HN recommender · 2023–2024
• documentaryTo Scale: THE SOLAR SYSTEMTo Scale: · 1 HN recommender · 2015–2025