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Cool Worlds

Space, astronomy, exoplanets, astroengineering and the search for extraterrestrial life & intelligence.

The Cool Worlds Lab (http://coolworldslab.com), based at the Department of Astronomy, Columbia University, is a team of astronomers seeking to discover and understand alien worlds, particularly those where temperatures are cool enough for life, led by Professor David Kipping.

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Today · 27 min
NASA's in Trouble
Use code coolworlds at https://incogni.com/coolworlds to get an exclusive 60% off an annual Incogni plan. NASA is the primary means through which US astronomy is funded, which in turn leads astronomy globally. But significant cuts to NASA this year are hurting programs across the board, and many worry that the future looks grim for NASA's astronomy programs due to two growing problems on its horizon. Join us as we explore what's happening and what you can do. Written & presented by Prof. David Kipping. Special thanks to Grant Tremblay for useful information in preparing this video. → Head to www.SaveChandra.org for information on how to save NASA's Chandra telescope → Support our research: https://www.coolworldslab.com/support → Get merch: https://teespring.com/stores/cool-worlds-store → Check out our podcast: www.youtube.com/@CoolWorldsPodcast THANK-YOU to D. Smith, M. Sloan, L. Sanborn, C. Bottaccini, D. Daughaday, A. Jones, S. Brownlee, N. Kildal, Z. Star, E. West, T. Zajonc, C. Wolfred, L. Skov, G. Benson, A. De Vaal, M. Elliott, B. Daniluk, S. Vystoropskyi, S. Lee, Z. Danielson, C. Fitzgerald, C. Souter, M. Gillette, T. Jeffcoat, J. Rockett, D. Murphree, M. Sanford, T. Donkin, K. Myers, A. Schoen, K. Dabrowski, J. Black, R. Ramezankhani, J. Armstrong, K. Weber, S. Marks, L. Robinson, S. Roulier, B. Smith, J. Cassese, J. Kruger, S. Way, P. Finch, S. Applegate, L. Watson, E. Zahnle, N. Gebben, J. Bergman, E. Dessoi, C. Macdonald, M. Hedlund, P. Kaup, C. Hays, W. Evans, D. Bansal, J. Curtin, J. Sturm, RAND Corp., M. Donovan, N. Corwin, M. Mangione, K. Howard, L. Deacon, G. Metts, R. Provost, B. Sigurjonsson, G. Fullwood, B. Walford, J. Boyd, N. De Haan, J. Gillmer, R. Williams, E. Garland, A. Leishman, A. Phan Le, R. Lovely, M. Spoto, A. Steele, K. Yarbrough, A. Cornejo, D. Compos, F. Demopoulos, G. Bylinsky, J. Werner, B. Pearson, S. Thayer, T. Edris, B. Seeley, F. Blood, M. O'Brien, P. Muzyka, D. Lee, J. Sargent, M. Czirr, F. Krotzer, I. Williams, J. Sattler, J. Smallbon, B. Reese, J. Yoder, O. Shabtay, X. Yao, S. Saverys, M. Pittelli, A. Nimmerjahn, C. Seay, D. Johnson, L. Cunningham, M. Morrow, M. Campbell, R. Strain, B. Devermont, Y. Muheim & A. Stark. REFERENCES ► NASA budget figures spreadsheet: https://t.co/kt8pE0anCT ► Rasmussen, S. 2023, "Has the Last Great Space Observatory Already Launched?", Scientific American: https://www.scientificamerican.com/article/has-the-last-great-space-observatory-already-launched/ ► HST & Beyond Committee Report 1996: https://www.stsci.edu/stsci/org/hst-and-beyond-report.pdf ► NASA IRB JWST Report 2018: https://www.nasa.gov/wp-content/uploads/2015/01/webb_irb_report_and_response_0.pdf?emrc=d3ca32 ► Reichhardt, T. 2006, "Is the next big thing too big?", Nature: https://www.nature.com/articles/440140a ► Elvis, M. 2016, "What Can Space Resources do for Astronomy and Planetary Science?", Space Policy, 37, 65: https://arxiv.org/pdf/1608.01004 ► Van Belle, G., 2021, "The Scaling Relationship Between Telescope Cost and Aperture Size for Very Large Telescopes", Proceedings of the SPIE, 5489, 563: https://arxiv.org/pdf/2107.09605 MUSIC Licensed by SoundStripe.com (SS) [shorturl.at/ptBHI], Artlist.io, via CC Attribution License (https://creativecommons.org/licenses/by/4.0/) or with permission from the artist. 0:00 Hill - A Slowly Lifting Fog 3:36 Hill - Unhurried 5:58 Chris Zabriskie - Music From Neptune Flux 4 8:29 Hill - World of Wonder 11:18 Falls - Life in Binary 15:27 Chris Zabriskie - Music From Neptune Flux 1 18;24 Joachim Heinrich - Y 20:42 Indive - Fusion CHAPTERS 0:00 Astronomy Funding 5:58 Incogni 7:18 Crisis Ahead 20:42 Outro & Credits #NASA #Astronomy #CoolWorlds Learn more about your ad choices. Visit megaphone.fm/adchoices
Today · 26 min
Crowded or Lonely? The Statistics of Alien Life
New research paper from the Cool Worlds Lab! Today we explore the implications of a classic result in statistics but applied to alien life for the first time. The result implies a startling conclusion, the cosmos is either teeming with intelligent civilizations, or we're essentially alone. Join us today as explore how this works and what the implications might be. Written & presented by Prof. David Kipping. → Support our research: https://www.coolworldslab.com/support → Get merch: https://teespring.com/stores/cool-worlds-store → Check out our podcast: www.youtube.com/@CoolWorldsPodcast THANK-YOU to D. Smith, M. Sloan, L. Sanborn, C. Bottaccini, D. Daughaday, A. Jones, S. Brownlee, N. Kildal, Z. Star, E. West, T. Zajonc, C. Wolfred, L. Skov, G. Benson, A. De Vaal, M. Elliott, B. Daniluk, S. Vystoropskyi, S. Lee, Z. Danielson, C. Fitzgerald, C. Souter, M. Gillette, T. Jeffcoat, J. Rockett, D. Murphree, M. Sanford, T. Donkin, K. Myers, A. Schoen, K. Dabrowski, J. Black, R. Ramezankhani, J. Armstrong, K. Weber, S. Marks, L. Robinson, S. Roulier, B. Smith, J. Cassese, J. Kruger, S. Way, P. Finch, S. Applegate, L. Watson, E. Zahnle, N. Gebben, J. Bergman, E. Dessoi, C. Macdonald, M. Hedlund, P. Kaup, C. Hays, W. Evans, D. Bansal, J. Curtin, J. Sturm, RAND Corp., M. Donovan, N. Corwin, M. Mangione, K. Howard, L. Deacon, G. Metts, R. Provost, B. Sigurjonsson, G. Fullwood, B. Walford, J. Boyd, N. De Haan, J. Gillmer, R. Williams, E. Garland, A. Leishman, A. Phan Le, R. Lovely, M. Spoto, A. Steele, K. Yarbrough, A. Cornejo, D. Compos, F. Demopoulos, G. Bylinsky, J. Werner, B. Pearson, S. Thayer, T. Edris, B. Seeley, F. Blood, M. O'Brien, P. Muzyka, D. Lee, J. Sargent, M. Czirr, F. Krotzer, I. Williams, J. Sattler, J. Smallbon, B. Reese, J. Yoder, O. Shabtay, X. Yao, S. Saverys, M. Pittelli, A. Nimmerjahn, C. Seay, D. Johnson, L. Cunningham, M. Morrow, M. Campbell, R. Strain, B. Devermont, Y. Muheim & A. Stark. REFERENCES ► Kipping & Geraint 2024, "Do SETI Optimists Have a Fine-Tuning Problem?", International Journal of Astrobiology, submitted (https://drive.google.com/file/d/1OxsjoOm8yJA7V3Yn_qt_sKshX8EYGT9U) ► Jaynes 1968, "Prior Probabilities", IEEE Transactions on Systems Science and Cybernetics , 4, 227: https://ieeexplore.ieee.org/document/4082152 CHAPTERS 0:00 Aliens! 1:00 Jaynes' Experiment 3:33 What about Drake? 6:31 Birth-Death Balance 9:51 Bridging to Jaynes 11:04 Challenging the Optimists 13:17 Just Sample More Stars? 15:39 Disequilibria 17:22 The Case for SETI 19:31 Outro & Credits #Aliens #AreWeAlone #CoolWorlds Learn more about your ad choices. Visit megaphone.fm/adchoices
Today · 6 min
How to Flip a Planet
Many exoplanets, including hot-Jupiters, have been observed to orbit the star the wrong way round, in retrograde orbits relative to the star's rotation. Prof. Smadar Naoz from UCLA visited the Cool Worlds Lab and explained why this is so odd and how we might explain these bizarre observation. ::More about this Video:: ► Prof Smadar Naoz homepage: http://www.astro.ucla.edu/~snaoz/ ► Simulation video of planet-planet scattering, credit Trent Schindler / National Science Foundation: http://www.berkeley.edu/news/media/releases/2005/04/13_planet.shtml ► Galaxy simulation (showing conservation of angular momentum) by Rob Crain (Leiden) and the Virgo Consortium, visualization by Rob Crain (Leiden) and Jim Geach (Hertfordshire) ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!! Learn more about your ad choices. Visit megaphone.fm/adchoices
Today · 18 min
A JuMBO Mystery - This Shouldn't Happen!
Some startling discoveries from JWST and now Euclid and shaking up our ideas of planet formation and evolution - free floating worlds that really tax our current theories and could be just the tip of the iceberg. Join us today as we explore a "jumbo" mystery that's recently emerged in astronomy... Written & presented by Prof. David Kipping. → Support our research: https://www.coolworldslab.com/support → Get merch: https://teespring.com/stores/cool-worlds-store → Check out our podcast: www.youtube.com/@CoolWorldsPodcast THANK-YOU to T. Widdowson, D. Smith, L. Sanborn, C. Bottaccini, D. Daughaday, S. Brownlee, E. West, T. Zajonc, A. De Vaal, M. Elliott, B. Daniluk, S. Vystoropskyi, S. Lee, Z. Danielson, C. Fitzgerald, C. Souter, M. Gillette, T. Jeffcoat, J. Rockett, D. Murphree, M. Sanford, T. Donkin, A. Schoen, K. Dabrowski, R. Ramezankhani, J. Armstrong, S. Marks, B. Smith, J. Kruger, S. Applegate, E. Zahnle, N. Gebben, J. Bergman, C. Macdonald, M. Hedlund, P. Kaup, W. Evans, RAND Corp., N. Corwin, K. Howard, G. Metts, R. Provost, G. Fullwood, N. De Haan, R. Williams, E. Garland, R. Lovely, A. Cornejo, D. Compos, F. Demopoulos, G. Bylinsky, J. Werner, S. Thayer, T. Edris, F. Blood, M. O'Brien, D. Lee, J. Sargent, M. Czirr, F. Krotzer, I. Williams, J. Sattler, B. Reese, O. Shabtay, X. Yao, S. Saverys, A. Nimmerjahn, C. Seay, D. Johnson, L. Cunningham, M. Morrow, M. Campbell, B. Devermont, Y. Muheim, A. Stark, C. Caminero & P. Borisoff. REFERENCES ► McCaughrean, M. J. & Pearson, S. G. 2023, "A JWST survey of the Trapezium Cluster & inner Orion Nebula. I. Observations & overview": https://arxiv.org/abs/2310.03552 ► Pearson, S. G. & McCaughrean, M. J. 2023, "Jupiter Mass Binary Objects in the Trapezium Cluster": https://arxiv.org/abs/2310.01231 ► Wang, Y., Perna, R., Zhu, Z. 2024, "Floating binary planets from ejections during close stellar encounters", https://arxiv.org/abs/2310.06016 ► Zwart, S. P. & Hochart, E. 2023, "The origin and evolution of wide Jupiter Mass Binary Objects in young stellar clusters": https://arxiv.org/abs/2312.04645 MUSIC Licensed by SoundStripe.com (SS) [shorturl.at/ptBHI], Artlist.io, via CC Attribution License (https://creativecommons.org/licenses/by/4.0/) or with permission from the artist. 0:00 Hill - There is but One Good [https://open.spotify.com/track/1vlxAsmQaHJo1HyvYJF770] 3:39 Falls - Life in Binary 5:10 Hill - Circle 10:13 Chris Zabriskie - The Sun is Scheduled to Come Out Tomorrow 13:23 Indive - Trace Correction CHAPTERS 0:00 Free Floating Planets 3:39 YT Premium 5:10 Seeking Rogue Worlds 7:12 A Binary Headache 13:23 Outro & Credits #Astronomy #JWST #CoolWorlds Learn more about your ad choices. Visit megaphone.fm/adchoices
Today · 5 min
Cool Worlds Research in 2017: A Look Ahead!
It's time to take a break for a few weeks but before we do, here's a look ahead at what research we'll be getting up to in 2017! Many of us are heading to the American Astronomical Meeting in Grapevine, TX, so be sure to say hello if you'll be there. Thanks to everyone for tuning in and supporting our channel in 2016! ::More about this Video:: ► 229th Meeting of the American Astronomical Society: https://aas.org/meetings/aas229 ► Proxima b Transit Results video: https://youtu.be/fLPZiCZtr_k ► Machines Predict Exoplanets video: https://youtu.be/6xxt9ke8uYo ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!! Learn more about your ad choices. Visit megaphone.fm/adchoices
Today · 5 min
The Great American Eclipse 2017
Get ready! On August 21st 2017, Americans will be treated to a rare total Solar eclipse. From coast to coast, everyone in the US should be able to see at least a partial eclipse and be within a day's drive of catching the total eclipse. Here's a quick rundown of what to expect, where to go and how to plan your trip. ::More about this Video:: ► The web app you can use to plan your trip (as shown in the video) is available at www.GreatAmericanEclipse.com ► NASA's page on the upcoming eclipse: http://eclipse.gsfc.nasa.gov/SEgoogle/SEgoogle2001/SE2017Aug21Tgoogle.html ► Where to buy your glasses from: https://www.greatamericaneclipse.com/store/ and http://www.eclipse2017.org/glasses_order.htm ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!! Learn more about your ad choices. Visit megaphone.fm/adchoices
Today · 7 min
A Real Tractor Beam
NYU Professor of Physics, David Grier, dropped in to tell us about his team's amazing work building the world's first real life tractor beam. Just like Star Trek, he explains how their light beam pulls things toward it, how it works and how it could soon be used by NASA. ::More about this Video:: ► Prof David Grier's homepage: http://physics.nyu.edu/grierlab/ ► "Building Star Trek", Smithsonian Channel: http://www.smithsonianchannel.com/shows/building-star-trek/0/3436402 ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!! Learn more about your ad choices. Visit megaphone.fm/adchoices
Today · 23 min
Are Dyson Spheres Physically Possible?
Use code coolworlds at https://incogni.com/coolworlds to get an exclusive 60% off an annual Incogni plan. The idea of Dyson Spheres was a radical proposal by the physicist Freeman Dyson, an enormous shell of material enveloping a star. Dyson's idea may be over half a century old, but interest in looking for such objects has only grown in the decades since. But how would such structures work? Are they physically even possible? And what might someone use them for? Today, we dive into the physics of Dyson spheres. Written & presented by Prof. David Kipping. Edited by Jorge Casas. Special thanks to Jason Wright for fact checking. → Support our research: https://www.coolworldslab.com/support → Get merch: https://teespring.com/stores/cool-worlds-store → Check out our podcast: www.youtube.com/@CoolWorldsPodcast THANK-YOU to T. Widdowson, D. Smith, L. Sanborn, C. Bottaccini, D. Daughaday, S. Brownlee, E. West, T. Zajonc, A. De Vaal, M. Elliott, B. Daniluk, S. Vystoropskyi, S. Lee, Z. Danielson, C. Fitzgerald, C. Souter, M. Gillette, T. Jeffcoat, J. Rockett, D. Murphree, M. Sanford, T. Donkin, A. Schoen, K. Dabrowski, R. Ramezankhani, J. Armstrong, S. Marks, B. Smith, J. Kruger, S. Applegate, E. Zahnle, N. Gebben, J. Bergman, C. Macdonald, M. Hedlund, P. Kaup, W. Evans, N. Corwin, K. Howard, L. Deacon, G. Metts, R. Provost, G. Fullwood, N. De Haan, R. Williams, E. Garland, R. Lovely, A. Cornejo, D. Compos, F. Demopoulos, G. Bylinsky, J. Werner, S. Thayer, T. Edris, F. Blood, M. O'Brien, D. Lee, J. Sargent, M. Czirr, F. Krotzer, I. Williams, J. Sattler, B. Reese, O. Shabtay, X. Yao, S. Saverys, A. Nimmerjahn, C. Seay, D. Johnson, L. Cunningham, M. Morrow, M. Campbell, B. Devermont, Y. Muheim, A. Stark, C. Caminero, P. Borisoff, A. Donovan & H. Schiff. REFERENCES ► Wright, J. 2020, "Dyson Spheres", Serbian Astronomical Journal, 200, 1: https://arxiv.org/abs/2006.16734 ► Dyson, F. 1960, "Search for Artificial Stellar Sources of Infrared Radiation", Science, 131, 1667: https://ui.adsabs.harvard.edu/abs/1960Sci...131.1667D ► Dyson, F. 1960, Science, 132, 250 ► NASA IRB JWST Report 2018: https://www.nasa.gov/wp-content/uploads/2015/01/webb_irb_report_and_response_0.pdf?emrc=d3ca32 ► Papagiannis, M. D. 1985, "SETI - a look into the future.", The search for extraterrestrial life: recent development, 543: https://ui.adsabs.harvard.edu/abs/1985IAUS..112..543P ► Scoggins, M. & Kipping, D. 2023, "Lazarus stars: numerical investigations of stellar evolution with star-lifting as a life extension strategy", MNRAS, 523, 3251: https://arxiv.org/abs/2210.02338 MUSIC Licensed by SoundStripe.com (SS) [shorturl.at/ptBHI], Artlist.io, via CC Attribution License (https://creativecommons.org/licenses/by/4.0/) or with permission from the artist. 0:34 Tamuz Dekel - Quiet Pull 3:05 We Dream of Eden - Discovery 4:23 Hill - World of Wonder [https://open.spotify.com/track/7kYX7Gq7wWwGwvZbMfu9Qv] 6:28 Chris Zabriskie - Music from Neptune Flux 04 8:59 Hill - Arctic Warmth 11:54 Hill - Northern Borders 15:13 Hill - Fragile 17:45 Indive - Trace Correction CHAPTERS 0:00 Prologue 0:39 Inception 3:11 Incogni 4:27 Mechanical Stability 8:31 Gravitational Stability 11:08 Stellar Feedback 13:42 Computational Limits 16:23 Rings and Swarms 17:45 Outro and Credits #DysonSphere #Astronomy #CoolWorlds Learn more about your ad choices. Visit megaphone.fm/adchoices
Today · 5 min
Alien signal received from HD 164595?
Dr Seth Shostak, Senior Astronomer of the SETI Institute, was at the New England Fall Astronomy Festival with me last week and I took the opportunity to ask him about the news reports of a SETI signal detected in Russia from the star HD 164595. Dr Shostak explains why he's not convinced that we've just heard from another civilization. Apologies for the noisy background and typo on the title: Shostak not Shostack! ::More about this Video:: ► CNN News report: http://www.cnn.com/2016/08/31/europe/seti-signal-hd-164595-not-alien-civilization/ ► Big Picture Science: http://radio.seti.org/about_the_show ► SETI Institute: http://www.seti.org/ ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!! Learn more about your ad choices. Visit megaphone.fm/adchoices
Today · 25 min
Do "Grabby Aliens" Solve The Fermi Paradox?
Thanks to Storyblocks for sponsoring this video! Download unlimited stock media at one set price with Storyblocks: https://www.storyblocks.com/CoolWorlds There are many possible solutions to the Fermi Paradox but a few have risen to particular prominence - including the "Grabby Aliens" hypothesis. Today, we'll explore what this solution proposes, what it assumes, and ultimately three reasons why I personally don't think it's right. Written & presented by Prof. David Kipping. Edited by Jorge Casas. Special thanks to Robin Hanson for his discussions with me on this. → Support our research: https://www.coolworldslab.com/support → Get merch: https://teespring.com/stores/cool-worlds-store → Check out our podcast: www.youtube.com/@CoolWorldsPodcast THANK-YOU to T. Widdowson, D. Smith, L. Sanborn, C. Bottaccini, D. Daughaday, S. Brownlee, E. West, T. Zajonc, A. De Vaal, M. Elliott, B. Daniluk, S. Vystoropskyi, S. Lee, Z. Danielson, C. Fitzgerald, C. Souter, M. Gillette, T. Jeffcoat, J. Rockett, D. Murphree, M. Sanford, T. Donkin, A. Schoen, K. Dabrowski, R. Ramezankhani, J. Armstrong, S. Marks, B. Smith, J. Kruger, S. Applegate, E. Zahnle, N. Gebben, J. Bergman, C. Macdonald, M. Hedlund, P. Kaup, W. Evans, N. Corwin, K. Howard, L. Deacon, G. Metts, R. Provost, G. Fullwood, N. De Haan, R. Williams, E. Garland, R. Lovely, A. Cornejo, D. Compos, F. Demopoulos, G. Bylinsky, J. Werner, S. Thayer, T. Edris, F. Blood, M. O'Brien, D. Lee, J. Sargent, M. Czirr, F. Krotzer, I. Williams, J. Sattler, B. Reese, O. Shabtay, X. Yao, S. Saverys, A. Nimmerjahn, C. Seay, D. Johnson, L. Cunningham, M. Morrow, M. Campbell, B. Devermont, Y. Muheim, A. Stark, C. Caminero, P. Borisoff, A. Donovan & H. Schiff. REFERENCES ► Hanson, R. et al. 2021, "If Loud Aliens Explain Human Earliness, Quiet Aliens Are Also Rare", ApJ, 922, 182: https://arxiv.org/abs/2102.01522 ► Carter, B. 2008, "Five or six step scenario for evolution?", Int. J. Astrobiology, 7, 103516: https://arxiv.org/abs/0711.1985 ► Kipping, D. 2021, "The Red Sky Paradox", PNAS, 118, e2026808118: https://arxiv.org/abs/2106.11207 MUSIC Licensed by SoundStripe.com (SS) [shorturl.at/ptBHI], Artlist.io, via CC Attribution License (https://creativecommons.org/licenses/by/4.0/) or with permission from the artist. 0:00 - Tamuz Dekel - Quiet Pull 2:55 - Joachim Heinrich - Horizon 4:13 - Joachim Heinrich - Stjärna 6:41 - Hill - World of Wonder 7:43 - Chris Zabriskie - The Oceans Continue to Rise 9:33 - Hill - Arctic Warmth 12:21 - Hill - Northern Boards 15:39 - Hill - Fragile 19:10 - Hill - The Meek CHAPTERS 0:00 Grabby Aliens 6:43 StoryBlocks 7:47 Hard Steps 12:00 M-Dwarfs 15:30 Philosophical Issues 18:05 Conclusions 19:10 Outro and Credits #GrabbyAliens #FermiParadox #CoolWorlds Learn more about your ad choices. Visit megaphone.fm/adchoices
Today · 26 min
The Question That Keeps Me Awake At Night
The most fundamental question we can ever ask: Why is something rather than nothing? Not nothing as in no particles or no energy, but nothing as in no space, no time, no laws of physics at all. This is a question that has haunted me for years and today this deepest of questions. Written and presented by Prof David Kipping, edited by Jorge Casas. → Support our research program: https://www.coolworldslab.com/support → Get Stash here! https://teespring.com/stores/cool-worlds-store [themed T-shirt for the video is here: https://cool-worlds-store.creator-spring.com/listing/why-is-there-anything] THANK-YOU to our supporters D. Smith, M. Sloan, C. Bottaccini, D. Daughaday, A. Jones, S. Brownlee, N. Kildal, Z. Star, E. West, T. Zajonc, C. Wolfred, L. Skov, G. Benson, A. De Vaal, M. Elliott, B. Daniluk, M. Forbes, S. Vystoropskyi, S. Lee, Z. Danielson, C. Fitzgerald, C. Souter, M. Gillette, T. Jeffcoat, J. Rockett, D. Murphree, S. Hannum, T. Donkin, K. Myers, A. Schoen, K. Dabrowski, J. Black, R. Ramezankhani, J. Armstrong, K. Weber, S. Marks, L. Robinson, S. Roulier, B. Smith, G. Canterbury, J. Cassese, J. Kruger, S. Way, P. Finch, S. Applegate, L. Watson, E. Zahnle, N. Gebben, J. Bergman, E. Dessoi, J. Alexander, C. Macdonald, M. Hedlund, P. Kaup, C. Hays, W. Evans, D. Bansal, J. Curtin, J. Sturm, RAND Corp., M. Donovan, N. Corwin, M. Mangione, K. Howard, L. Deacon, G. Metts, G. Genova, R. Provost, B. Sigurjonsson, G. Fullwood, B. Walford, J. Boyd, N. De Haan, J. Gillmer, R. Williams, E. Garland, A. Leishman, A. Phan Le, R. Lovely, M. Spoto, A. Steele, M. Varenka, K. Yarbrough, A. Cornejo, D. Compos, F. Demopoulos, G. Bylinsky & J. Werner. ::Music:: Music licensed by SoundStripe.com (SS) [shorturl.at/ptBHI], Artlist.io, via Creative Commons (CC) Attribution License (https://creativecommons.org/licenses/by/4.0/), or with permission from the artist ► 00:00 Hill - The Great Alchemist [https://open.spotify.com/track/3PAx36jIsKiQMT9CQsRk4G?si=035fc819505445a1] ► 04:28 Falls - Ripley ► 08:11 Joachim Heinrich - Stjärna ► 09:49 Hill - Evening Approaches [https://open.spotify.com/track/3mYMEDKgj4qwBkuwcXeb89] ► 11:18 Hill - Fragmented [https://open.spotify.com/track/1z9xpNXpQmbXYd9M8dcJhE] ► 13:49 Hill - A Slowly Lifting Fog [https://open.spotify.com/track/0GgkyL3y22kFslT6wUsKlt] ► 16:57 Joachim Heinrich - Y ::Chapters:: 00:00 Restless Nights 02:35 Candle in the Dark 09:25 Ontological Crises 10:35 Why Not Nothing? 13:19 A Brutal Possibility 16:59 A Personal Reflection #WhyIsThereAnything #WhyNotNothing #CoolWorlds Learn more about your ad choices. Visit megaphone.fm/adchoices
Today · 7 min
The Signatures of Alien Life… or Not | Tiffany Jansen
Astronomers are finding habitable exoplanets everywhere! We are now starting to think about the next step, how can we use our telescopes to look for signs of life on distant worlds? Cool Worlds Lab astronomer Tiffany Jansen talks about possible atmospheric signals that could indicate the presence of a biosphere, but also the abiotic sources that could fool us all. ::More about this Video:: ► Reinhard et al. (2017), "False negatives for remote life detection on ocean-bearing planets: Lessons from the early Earth": https://arxiv.org/abs/1702.01137 ► Hein et al. (2013), "Some inconvenient truths about biosignatures involving two chemical species on Earth-like exoplanets": https://arxiv.org/abs/1404.6531 ► Wordsworth & Pierrehumbert (2014), "Abiotic oxygen-dominated atmospheres on terrestrial habitable zone planets": https://arxiv.org/abs/1403.2713 ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!! Learn more about your ad choices. Visit megaphone.fm/adchoices
Today · 7 min
Climate Emergency? Global Sea Ice at Anomalously Low Levels
This week a plot showing the global sea ice over time went viral due to shockingly low levels, smashing previous records. The plot was so weird that we decided to check out the data for ourselves and see if it was legit. Indeed, we can reproduce this alarming plot and provide some links and scripts for any of you who want to go ahead and try yourselves. Here we get into why we think these kinds of weird observations may become more common in the future. ::More about this Video:: ► National Sea and Ice Data Center archive of sea ice extent data: https://nsidc.org/data/docs/noaa/g02135_seaice_index/ ► My Mathematica script used to generate a confirming plot: https://github.com/davidkipping/seaiceextent ► Two of the first tweets publicizing the viral plot, Zach Labe (https://twitter.com/ZLabe/status/798913080168095744) and Eric Holthaus (https://twitter.com/EricHolthaus/status/800067428419940352). ► Wipneus archive of plots: https://sites.google.com/site/arctischepinguin/home/sea-ice-extent-area/grf ► Eric Holthaus blog article about the viral plot: http://tinyletter.com/sciencebyericholthaus/letters/today-in-weather-climate-sea-ice-tipping-point-edition-monday-november-21th ► Guardian article on record Arctic temperatures: https://www.theguardian.com/environment/2016/nov/22/extraordinarily-hot-arctic-temperatures-alarm-scientists ► CNN article on record Arctic temperatures: http://www.cnn.com/2016/11/18/world/sea-ice-arctic-antarctic-lows/ ► Conrath at al. (1970), "The Infrared Interferometer Experiment on Nimbus 3": http://onlinelibrary.wiley.com/doi/10.1029/JC075i030p05831/abstract ► Gavin Schmidt explains "How we know that the Earth's climate is changing": https://youtu.be/mkT7IyUSjq0 ► Video background music by Nick Caville: https://www.youtube.com/watch?v=iv2WSDMBRxA ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ►http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!! Learn more about your ad choices. Visit megaphone.fm/adchoices
Today · 8 min
Proxima b QandA - is Proxima b tidally locked?
Thanks for all of your great comments and questions on our last two Proxima b videos! Here's a quick video covering some of the most common questions about Proxima b, such as: Is it tidally locked? Can we image it with Hubble? Can we take a photo with a flyby spaceship? ::More about this Video:: ► "Discovery of a Planet around our Nearest Star: Proxima b" Cool Worlds video by Dr Guillem Anglada: https://youtu.be/59ClESB1AqA ► "Proxima b: Transits, Habitability & How to Get There!" Cool Worlds video by Prof Kipping: https://youtu.be/tcc635lNRwY ► Video of zonal winds on a tidally locked planet taken from Merlis & Schneider (2010), "Atmospheric dynamics of Earth-like tidally locked aquaplanets": https://arxiv.org/abs/1001.5117 ► Leconte et al. (2015), "Asynchronous rotation of Earth-mass planets in the habitable zone of lower-mass stars": http://science.sciencemag.org/content/347/6222/632 ► Kreidberg & Loeb (2016), "Prospects for Characterizing the Atmosphere of Proxima Centauri b": http://arxiv.org/abs/1608.07345 ► Proxima b flyby video by the Planetary Habitability Laboratory, University of Puerto Rico at Arecibo: http://phl.upr.edu/press-releases/proxb ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!! Learn more about your ad choices. Visit megaphone.fm/adchoices
Yesterday · 30 min
Interstellar Propulsion Technologies - RANKED!
Use code coolworlds at https://incogni.com/coolworlds to get an exclusive 60% off an annual Incogni plan. Many of you wanted me to talk about the different interstellar propulsion ideas out there so we figured a fun way to compare them all would be in a tier list! Today we take a look at 14 different methods proposed to explore the stars. Let us know your rankings down below in the comments. Written & presented by Prof. David Kipping. Edited by Jorge Casas. → Support our research: https://www.coolworldslab.com/support → Get merch: https://teespring.com/stores/cool-worlds-store → Check out our podcast: www.youtube.com/@CoolWorldsPodcast THANK-YOU to T. Widdowson, D. Smith, L. Sanborn, C. Bottaccini, D. Daughaday, S. Brownlee, E. West, T. Zajonc, A. De Vaal, M. Elliott, B. Daniluk, S. Vystoropskyi, S. Lee, Z. Danielson, C. Fitzgerald, C. Souter, M. Gillette, T. Jeffcoat, J. Rockett, D. Murphree, M. Sanford, T. Donkin, A. Schoen, K. Dabrowski, R. Ramezankhani, J. Armstrong, S. Marks, B. Smith, J. Kruger, S. Applegate, E. Zahnle, N. Gebben, J. Bergman, C. Macdonald, M. Hedlund, P. Kaup, W. Evans, N. Corwin, K. Howard, L. Deacon, G. Metts, R. Provost, G. Fullwood, N. De Haan, R. Williams, E. Garland, R. Lovely, A. Cornejo, D. Compos, F. Demopoulos, G. Bylinsky, J. Werner, S. Thayer, T. Edris, F. Blood, M. O'Brien, D. Lee, J. Sargent, M. Czirr, F. Krotzer, I. Williams, J. Sattler, B. Reese, O. Shabtay, X. Yao, S. Saverys, A. Nimmerjahn, C. Seay, D. Johnson, L. Cunningham, M. Morrow, M. Campbell, B. Devermont, Y. Muheim, A. Stark, C. Caminero, P. Borisoff, A. Donovan, H. Schiff, J. Cos, J. Oliver, B. Kite, C. Hansen, J. Shamp, & R. Chaffee. REFERENCES ► Kipping, D., 2024, "The Halo Drive: Fuel-Free Relativistic Propulsion of Large Masses via Recycled Boomerang Photons", JBIS: https://arxiv.org/abs/1903.03423 MUSIC Licensed by SoundStripe.com (SS) [shorturl.at/ptBHI], Artlist.io, via CC Attribution License (https://creativecommons.org/licenses/by/4.0/) or with permission from the artist. 0:00 Tamuz Dekel - Quiet Pull 2:55 Joachim Heinrich - Horizon 4:17 Joachim Heinrich - Stjärna 6:40 Hill - World of Wonder 7:46 Chris Zabriskie - The Oceans Continue to Rise 8:17 We Dream of Eden - Discovery 9:48 Chris Zabriskie - The Oceans Continue to Rise 11:11 Hill - Arctic Warmth 13:50 Hill - Northern Boards 17:25 Hill - Fragile 21:02 Hill - The Meek CHAPTERS 0:00 Intro 1:33 Chemical Rockets 3:31 Nuclear Thermal Rockets 5:55 Nuclear Pulse 8:20 Incogni 9:48 Solar Sails 12:15 Fission Sails 13:05 Laser Sails 14:47 Alcubierre Drive 15:24 Wormholes 16:09 Antimatter 17:28 Mind Upload 18:02 Negative Mass 18:42 Halo Drive 19:46 Ion Engine 20:32 Bussard Ramjet 21:03 Outro 22:51 Credits #InterstellarPropulsion #TierList #CoolWorlds Learn more about your ad choices. Visit megaphone.fm/adchoices
Yesterday · 7 min
How often does life start on other worlds?
Astrobiology an exciting new field studying how life begins and the conditions needed both on Earth and elsewhere in the cosmos. Columbia's Director of Astrobiology, Dr Caleb Scharf, dropped into the Cool Worlds Lab to tell us about his new paper which created a "Drake Equation" for abiogenesis. Whilst we can only guess at many of the factors in the equation right now, it provides a framework for tackling this problem going forward. ::More about this Video:: ► The paper by Scharf & Cronin (2016), "Quantifying the Origins of Life on a Planetary Scale": https://arxiv.org/abs/1511.02549 ► Drake Equation explained on the SETI website: http://www.seti.org/drakeequation ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!! Learn more about your ad choices. Visit megaphone.fm/adchoices
Yesterday · 11 min
IT'S HAPPENING!! RIGHT NOW!
Unscripted excitement about what's coming next... → Support our research: https://www.coolworldslab.com/support → Get merch: https://teespring.com/stores/cool-worlds-store → Check out our podcast: www.youtube.com/@CoolWorldsPodcast Previous videos in this story… - Some Bad News https://youtu.be/HtHqmlAb1pA - Some Good News https://youtu.be/4sv_sa_tLPg?si=9D4Pzh8H0TkisrTr - Why Exomoons Are So Important https://youtu.be/b2crw2DGy38?si=-mEc8rznBsO0GDah THANK-YOU to T. Widdowson, D. Smith, L. Sanborn, C. Bottaccini, D. Daughaday, S. Brownlee, E. West, T. Zajonc, A. De Vaal, M. Elliott, B. Daniluk, S. Vystoropskyi, S. Lee, Z. Danielson, C. Fitzgerald, C. Souter, M. Gillette, T. Jeffcoat, J. Rockett, D. Murphree, M. Sanford, T. Donkin, A. Schoen, K. Dabrowski, R. Ramezankhani, J. Armstrong, S. Marks, B. Smith, J. Kruger, S. Applegate, E. Zahnle, N. Gebben, J. Bergman, C. Macdonald, M. Hedlund, P. Kaup, W. Evans, N. Corwin, K. Howard, L. Deacon, G. Metts, R. Provost, G. Fullwood, N. De Haan, R. Williams, E. Garland, R. Lovely, A. Cornejo, D. Compos, F. Demopoulos, G. Bylinsky, J. Werner, S. Thayer, T. Edris, F. Blood, M. O'Brien, D. Lee, J. Sargent, M. Czirr, F. Krotzer, I. Williams, J. Sattler, B. Reese, O. Shabtay, X. Yao, S. Saverys, A. Nimmerjahn, C. Seay, D. Johnson, L. Cunningham, M. Morrow, M. Campbell, B. Devermont, Y. Muheim, A. Stark, C. Caminero, P. Borisoff, A. Donovan, H. Schiff, J. Cos, J. Oliver, B. Kite, C. Hansen, J. Shamp, & R. Chaffee. #Exomoons #JWST #CoolWorlds Learn more about your ad choices. Visit megaphone.fm/adchoices
Yesterday · 4 min
1000 Subs Thank-you + Channel Mission
Woah, 1000 subscribers! Thanks to everyone who viewed and subscribed so far! Quick thank-you video and some background about this channel's goals and future. Stay curious! ::More about this Video:: ► Cool Worlds Lab website: http://coolworlds.astro.columbia.edu ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!! Learn more about your ad choices. Visit megaphone.fm/adchoices
Yesterday · 20 min
JWST Reveals Exoplanets As Never Seen Before
JWST is approaching its one year anniversary since launching into space! So what has been found in that first year? Today we focus on exoplanets and summarize the various discoveries made thus far and what we can expect going forward. Written and presented by Prof David Kipping. Edited by Jorge Casas. Thumbnail by Helena Widerstrom. → Support our research program: https://www.coolworldslab.com/support → Get Stash here! https://teespring.com/stores/cool-worlds-store THANK-YOU to our supporters D. Smith, M. Sloan, C. Bottaccini, D. Daughaday, A. Jones, S. Brownlee, N. Kildal, Z. Star, E. West, T. Zajonc, C. Wolfred, L. Skov, G. Benson, A. De Vaal, M. Elliott, B. Daniluk, S. Vystoropskyi, S. Lee, Z. Danielson, C. Fitzgerald, C. Souter, M. Gillette, T. Jeffcoat, J. Rockett, D. Murphree, S. Hannum, T. Donkin, K. Myers, A. Schoen, K. Dabrowski, J. Black, R. Ramezankhani, J. Armstrong, K. Weber, S. Marks, L. Robinson, S. Roulier, B. Smith, G. Canterbury, J. Cassese, J. Kruger, S. Way, P. Finch, S. Applegate, L. Watson, E. Zahnle, N. Gebben, J. Bergman, E. Dessoi, J. Alexander, C. Macdonald, M. Hedlund, P. Kaup, C. Hays, W. Evans, D. Bansal, J. Curtin, J. Sturm, RAND Corp., M. Donovan, N. Corwin, M. Mangione, K. Howard, L. Deacon, G. Metts, G. Genova, R. Provost, B. Sigurjonsson, G. Fullwood, B. Walford, J. Boyd, N. De Haan, J. Gillmer, R. Williams, E. Garland, A. Leishman & A. Phan Le. ::Music:: Music licensed by SoundStripe.com (SS) [shorturl.at/ptBHI], Artlist.io, via Creative Commons (CC) Attribution License (https://creativecommons.org/licenses/by/4.0/), or with permission from the artist ► Conception (0:00) ► Brad Hill - There Is But One Good (03:30) [https://open.spotify.com/album/4pmiXcyRpPlFjWjb45pYLx0] ► Falls - Life in Binary (09:35) ► Indive - Trace Correction (14:26) ::Film/TV clips used:: ► Interstellar (Paramount Pictures) ::Chapters:: 00:00 Introduction 01:15 JWST Timeline 02:13 ERO 03:31 JWST Issues 05:42 ERS 06:59 Transit ERS 09:18 Imaging ERS 11:18 Cycle 1 12:12 Cycle 2 13:44 Final thoughts 14:26 Outro & Credits #JWST #Exoplanets #CoolWorlds Learn more about your ad choices. Visit megaphone.fm/adchoices
Yesterday · 26 min
The Odds of Life - THIS CHANGED MY MIND
Go to https://ground.news/CoolWorlds to discover the full spectrum of truths and absurdities behind today’s headlines. Save 40% on the Ground News unlimited access Vantage plan with my link. There's been some new studies in the fields of paleopaleontology that have changed my mind about one of the most profound questions - does life start easily on Earth-like planets? Join me today to find out why. Written & presented by Prof. David Kipping. Edited by Jorge Casas. → Support our research: https://www.coolworldslab.com/support → Get merch: https://teespring.com/stores/cool-worlds-store → Check out our podcast: www.youtube.com/@CoolWorldsPodcast THANK-YOU to T. Widdowson, D. Smith, L. Sanborn, C. Bottaccini, D. Daughaday, S. Brownlee, E. West, T. Zajonc, A. De Vaal, M. Elliott, B. Daniluk, S. Vystoropskyi, S. Lee, Z. Danielson, C. Fitzgerald, C. Souter, M. Gillette, T. Jeffcoat, J. Rockett, D. Murphree, M. Sanford, T. Donkin, A. Schoen, K. Dabrowski, R. Ramezankhani, J. Armstrong, S. Marks, B. Smith, J. Kruger, S. Applegate, E. Zahnle, N. Gebben, J. Bergman, C. Macdonald, M. Hedlund, P. Kaup, W. Evans, N. Corwin, K. Howard, L. Deacon, G. Metts, R. Provost, G. Fullwood, N. De Haan, R. Williams, E. Garland, R. Lovely, A. Cornejo, D. Compos, F. Demopoulos, G. Bylinsky, J. Werner, S. Thayer, T. Edris, F. Blood, M. O'Brien, D. Lee, J. Sargent, M. Czirr, F. Krotzer, I. Williams, J. Sattler, B. Reese, O. Shabtay, X. Yao, S. Saverys, A. Nimmerjahn, C. Seay, D. Johnson, L. Cunningham, M. Morrow, M. Campbell, B. Devermont, Y. Muheim, A. Stark, C. Caminero, P. Borisoff, A. Donovan & H. Schiff. REFERENCES ► Kipping 2020, "An objective Bayesian analysis of life's early start and our late arrival", PNAS, 117, 11995, ► Graham et al. 2024, "Substantial extension of the lifetime of the terrestrial biosphere", Planetary Science Journal, accepted: https://arxiv.org/abs/2409.10714 ► Moody et al. 2024, "The nature of the last universal common ancestor and its impact on the early Earth system", Nature Ecology & Evolution, 8, 1654 : https://www.nature.com/articles/s41559-024-02461-1 ► Nutman et al. 2016, "Rapid emergence of life shown by discovery of 3,700-million-year-old microbial structures", Nature, 537, 535: https://www.nature.com/articles/nature19355 ► Schmidt & Frank 2019, "The Silurian Hypothesis: Would it be possible to detect an industrial civilization in the geological record?", IJAsB, 18, 142: https://arxiv.org/abs/1804.03748 ► Schopf 2006, "Fossil evidence of Archaean life", Phil. Tran. Roy. Soc. B, 361, 1470: https://royalsocietypublishing.org/doi/10.1098/rstb.2006.1834 ► Wilde et al. 2001, "Evidence from detrital zircons for the existence of continental crust and oceans on the Earth 4.4 Gyr ago", Nature, 409, 175: https://www.nature.com/articles/35051550 ► Allwood 2016, "Evidence of life in Earth's oldest rocks", 537, 500: https://www.nature.com/articles/nature19429 ► Bell et al. 2015, "Potentially biogenic carbon preserved in a 4.1 billion-year-old zircon", PNAS, 112, 14518: https://www.pnas.org/doi/full/10.1073/pnas.1517557112 MUSIC Licensed by SoundStripe.com (SS) [shorturl.at/ptBHI], Artlist.io, via CC Attribution License (https://creativecommons.org/licenses/by/4.0/) or with permission from the artist. 0:00 - Tamuz Dekel - Quiet Pull 2:55 - Joachim Heinrich - Horizon 4:16 - Joachim Heinrich - Stjärna 7:04 - Hill - World of Wonder 8:28 - Chris Zabriskie - The Oceans Continue to Rise 9:40 - We Dream of Eden - Discovery 11:10 - Chris Zabriskie - The Oceans Continue to Rise 12:33 - Hill - Arctic Warmth 15:08 - Hill - Northern Boards 18:16 - Hill - The Meek #abiogenesis #life #CoolWorlds Learn more about your ad choices. Visit megaphone.fm/adchoices

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