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Cool Worlds

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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  • Wednesday · 23 min

    Why Don't We Live Around a Red Dwarf?

    Visit our sponsor, Brilliant.org: https://brilliant.org/CoolWorlds New research! Join us today as we discuss a new research paper just published in the Proceedings of the National Academy of Sciences from our team - The Red Sky Paradox. → Support our research program: https://www.coolworldslab.com/support → Get Stash here! https://teespring.com/stores/cool-worlds-store THANK-YOU to our supporters T. Widdowson, D. Smith, M. Sloan, L. Sanborn, C. Bottaccini, D. Daughaday, A. Jones, S. Brownlee, Z. Star, T. Zanjonc, C. Wolfred, F. Rebolledo, L. Skov, E. Wilson, M. Elliott, B. Daniluk, J. Patrick-Saunders, M. Forbes, S. Vystoropskyi, S. Lee, Z. Danielson, C. Fitzgerald, V. Alexandrov, L. Macchia, C. Souter, M. Gillette, T. Jeffcoat, H. Jensen, F. Linker, J. Rockett, N. Fredrickson, B. Mlazgar, D. Holland, J. Alexander, E. Hanway, J. Molnar, D. Murphree, S. Hannum, T. Donkin, K. Myers, K. Clawson, M. Sanford, P. Matos, S. Hannum, T. Jawad, T. Schnipper, T. Donkin, T. Moss, K. Myers & M. O'Brien. ::Links:: ► Kipping, D. (2021), "Formulation and resolutions of the red sky paradox", PNAS, 118 (26) e2026808118: https://arxiv.org/abs/2106.11207 ► Our video "The Odds of Life and Intelligence": https://youtu.be/iLbbpRYRW5Y ► Our video "Why we might be alone in the universe": https://youtu.be/PqEmYU8Y_rI ::Music:: Music licensed by SoundStripe.com (SS) [shorturl.at/ptBHI], or via Creative Commons (CC) Attribution License (https://creativecommons.org/licenses/by/4.0/), or with permission from the artist ► Joachim Heinrich - Arrival ► Falls - Life in Binary ► Joachim Heinrich - Y ► Chris Zabriskie - Cylinder Two ► Chris Zabriskie - Cylinder Five ► Indive - Fusion ::Video clips:: ► The Thinker clip by Great Art Explained ► Tea sitirring clip by Chirag Kalelkar ► Cosmology simulation by ESO/L. Calçada/Microsoft WWT ► Sun videos by NASA/SDO ► TRAPPIST-1 animations by ESO/L. Calcada/spaceengine.org ► Roulette clip by steveh552 ► Galactic colonization animation by Jonathan Caroll-Nellenback ► Easter Island clips by Easter Island WTM ► Proxima Centauri b animations by ESO/Konstantino Polizois/Nico Bartmann ► Planet formation animation by NCSA, NASA, A. Boley ► Jupiter clip by NASA/SwRI/MSSS/G. Eichstadt/S. Doran ► M-dwarf planet animation by ESO/M. Kornmesser ► HabEX animation by NASA/JPL ► Outro video by ESO/L.Calcada/spaceengine.org ::Film clips used:: ► The House (2017) - Warner Bros ► Noah (2014) - Paramount Pictures ► Avatar (2009) - 20th Century Fox ::Thumbnail:: ► Created by Helena Valenzuela Widerström: https://helenavw.artstation.com ::Chapters:: 00:00 Prologue 00:39 Paradoxes 03:05 Red Sky Paradox 05:05 Resolution I 10:39 Sponsored section 11:24 Resolution II 12:40 Resolution III 13:38 Resolution IV 16:19 Outro and credits #RedSkyParadox #Astrobiology #CoolWorlds Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Wednesday · 8 min

    Exomoons and Earth Twins QandA

    Answers to your questions on our recent Earth Twins (https://youtu.be/1eJnZncyAyM) and Exomoons (https://youtu.be/S3VQ0PdoR3M) videos. Sorry for the poor sound on this one, new camera setup caused some issues but should be fixed next time! ::More about this Video:: ► "Where are the Exomoons?" Cool Worlds video: https://youtu.be/S3VQ0PdoR3M ► "How Unique is the Earth?" Cool Worlds video: https://youtu.be/1eJnZncyAyM ► Kipping et al. (2015), "The Hunt for Exomoons with Kepler (HEK): V. A Survey of 41 Planetary Candidates for Exomoons": http://arxiv.org/abs/1503.05555 ► Canup & Ward (2006), "A common mass scaling for satellite systems of gaseous planets": http://www.nature.com/nature/journal/v441/n7095/full/nature04860.html ► 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

  • Wednesday · 17 min

    Semantics

    Lately there has been a growing push-back from the exoplanet community for astronomers to stop using the phrase "Earth-like". In this video, we get into the arguments being made and some reasons why I am personally finding the movement unpalatable. This is a topic ripe for public discussion so please watch through then let us know in the comments section what your opinion is! Thanks for your time! ::More about this Video:: ► Miriam Kramer (2016), "If we keep using 'Earth-like' to describe alien planets, it will become meaningless", Mashable: http://mashable.com/2016/08/28/earth-like-planets-proxima-b/ ► Moore et al. (2017), "How habitable zones and Super-Earths leads us astray", Nature Astronomy: https://www.nature.com/articles/s41550-017-0043 ► Nathaniel Scharping (2016), "What's the difference between Earth-mass and Earth-like?", Astronomy: http://www.astronomy.com/news/2016/10/whats-the-difference-between-earth-mass-and-earth-like ► Elizabeth Task (2017), "Let's Lose the Term 'Habitable-Zone' for Exoplanets", Scientific American: https://blogs.scientificamerican.com/observations/lets-lose-the-term-habitable-zone-for-exoplanets/ ► Kipping et al. (2014), "The Hunt for Exomoons with Kepler (HEK): IV. A Search for Moons around Eight M-Dwarfs", ApJ, 784, 28: https://arxiv.org/abs/1401.1210 ► Cool Worlds Lab website: http://coolworlds.astro.columbia.edu ► Columbia University Department of Astronomy: http://www.astro.columbia.edu ► Outro music by Daft Punk "Harder, Better, Stronger, Faster": http://www.daftpunk.com and http://smarturl.it/DaftPunkiTunes ::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 Tabby's Star ► http://bit.ly/TabbysStar 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

  • Wednesday · 11 min

    The Habitable Zone: Undergraduate Outreach Project

    This semester I taught "Exoplanets & Astrobiology" at Columbia and decided to do something a bit non-traditional and ask my class to make outreach videos in any style they want about a topic we covered in class. This video, by Elliotte Jun Beom Lee, Natalie Gaisser & Huiying Zhang was voted the class favorite and so I decided to upload it on the Cool Worlds channel to share with everyone! Let us know what you think and if you have any questions about habitable-zones. You can check out some of the other great videos made by class here: ► "What is a Planet by the Left-Handed Sneutrinos" by Leah Hays, Greg Humphries & Kaitlyn Loftus: https://www.youtube.com/watch?v=W4U9kd9NjaA ► "Sipping with Kipping" by Jeff Xie and Gabrielle Englemann-Suisse: https://www.youtube.com/watch?v=W4U9kd9NjaA ► "Astrometry & Exoplanets" by Shreyas Vissapragada and Briley Lewis: http://www.showme.com/sh/?h=7osiO8m ::More about this Video:: ► Kopparapu et al. (2013), "Habitable Zones Around Main-Sequence Stars: New Estimates": https://arxiv.org/abs/1301.6674 ► Ramirez & Kaltenegger (2014), "The Habitable Zones of Pre-Main-Sequence Stars": https://arxiv.org/abs/1412.1764 ► Ramirez & Kaltenegger (2016), "Habitable Zones of Post-Main Sequence Stars": https://arxiv.org/abs/1605.04924 ► Cool Worlds Lab website: http://coolworlds.astro.columbia.edu ► Columbia University Department of Astronomy: http://www.astro.columbia.edu ::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!! ヅ Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Wednesday · 38 min

    Is It Possible to Learn The Language of Planets?

    Could we learn to "speak planet"? Computational linguistics is now found in your smart phone, car and speakers, making sense of our speech and text. Could these same algorithms make sense of exoplanets? Join us today as we explore a radical new research idea recently published by the Cool Worlds Lab. Written and Presented by Dr Emily Sandford. This research was made possible through funding from the Data Science Institute’s Seed Fund Award. → Support our research program: https://www.coolworldslab.com/support → Get Stash here! https://teespring.com/stores/cool-worlds-store THANK-YOU to our supporters T. Widdowson, D. Smith, M. Sloan, L. Sanborn, C. Bottaccini, D. Daughaday, A. Jones, S. Brownlee, Z. Star, T. Zanjonc, C. Wolfred, F. Rebolledo, L. Skov, E. Wilson, M. Elliott, B. Daniluk, J. Patrick-Saunders, M. Forbes, S. Vystoropskyi, S. Lee, Z. Danielson, C. Fitzgerald, V. Alexandrov, L. Macchia, C. Souter, M. Gillette, T. Jeffcoat, H. Jensen, F. Linker, J. Rockett, N. Fredrickson, B. Mlazgar, D. Holland, J. Alexander, E. Hanway, J. Molnar, D. Murphree, S. Hannum, T. Donkin, K. Myers, A. Schoen, K. Dabrowski, A. Critchley, A. DeRuiter, B. Sando, J. La Plante, M. Freydl, N. Popp, T. Gross, M. Nielsen, G. McLean, J. Black, P. Ainsworth & E. Moyle. ::Links:: ► Sandford, E., Kipping, D. & Collins, M. (2021), "On planetary systems as ordered sequences", MNRAS, 505, 2224: https://arxiv.org/abs/2105.09966 ► Brown et al. 1992, "Class-Based n-gram Models of Natural Language": https://www.aclweb.org/anthology/J92-4003.pdf ►McAllester 2018, "Information Theoretic Co-Training": https://arxiv.org/abs/1802.07572 ► Stratos 2019, "Mutual Information Maximization for Simple and Accurate Part-Of-Speech Induction": https://arxiv.org/abs/1804.07849 ::Music:: Music licensed via Creative Commons (CC) Attribution License (https://creativecommons.org/licenses/by/4.0/) ► Joachim Heinrich - Stjärna ► Indive - Trace Correction ::Video clips:: ► Exoplanet animations by ESO/L. Calçada/spaceengine.org https://www.eso.org/public/videos/eso2102c/; ESO, L. Calçada, V.Romanyuk https://www.eso.org/public/videos/eso1837a/; ESO, M. Kornmesser, L.Calcada https://www.eso.org/public/videos/eso1737c/; ESO/L. Calçada https://www.eso.org/public/videos/eso1035e/; ESO/L. Calçada/spaceengine.org https://www.eso.org/public/videos/eso1706g/; ESO/L. Calçada https://www.eso.org/public/videos/eso1410g/; ESO/L.Calçada/spaceengine.org https://www.eso.org/public/videos/eso2005c/; ESO/L. Calçada https://www.eso.org/public/videos/eso1035b/; ESO/L. Calçada https://www.eso.org/public/videos/eso2102b/; ESO/L. Calçada/spaceengine.org https://www.eso.org/public/videos/eso2102c/; ESO/L.Calçada/M.Kornmesser https://www.eso.org/public/videos/eso1621a/; ESO/M. Kornmesser/Nick Risinger https://www.eso.org/public/videos/eso1517b/; ESO, M. Kornmesser, L.Calcada https://www.eso.org/public/videos/eso1045b/ ► TESS animation by NASA's Goddard Space Flight Center Conceptual Image Lab https://svs.gsfc.nasa.gov/20260#60680 ► Kepler animation by NASA/Kepler mission/Dana Berry https://exoplanets.nasa.gov/resources/1002/kepler-beauty-shot/ ► Planet formation simulation by Sean Raymond: https://youtu.be/oBQqwfNLHug ► Hydraulic press videos by Crazy Hidraulic Press: https://youtu.be/QYqOMjoz_i8 and https://youtu.be/MObYpxKG9XI ► Animated solar system animation by Steven Howe: https://youtu.be/08J_MI0KSqA ::Film/TV clips used:: ► Arrival (2016) - Paramount Pictures ► The House (2017) - Warner Bros. Pictures ► Star Trek: The Next Generation - Paramount Television ► Saturday Night Live - NBS ::Chapters:: 00:00 Prologue 01:42 Exopatterns 07:25 Computational Linguistics 10:40 Brown Clustering 19:25 Planetary Linguistics 29:52 Outro and credits #PlanetaryLinguistics #CoolWorlds Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Wednesday · 33 min

    Why We Might NEVER Detect Alien Life

    For 72 hours, enjoy 15% OFF on all Hoverpens with code COOLWORLDS, or click on the link https://noviumdesign.shop/CoolWorlds - Free shipping to most countries. Also on Amazon: https://noviumdesign.shop/1HrMzs We've all the heard headlines of scientists claiming evidence of alien life, but time and time again it turns up bust. Why does this keep happening? And will we ever be able to break out of this cycle? Our new research paper tackles this profound question, and outlines a possible way out... Written & presented by David Kipping → Support our research: https://www.coolworldslab.com/support → Get merch: https://crowdmade.com/collections/cool-worlds → Check out our podcast: www.youtube.com/@CoolWorldsPodcast THANK-YOU to S. Shardool, M. Seay, M. McMillan, M. Popovski, M. Singh, M. Elliott, M. Donkin, M. Zajonc, M. Czirr, M. Williams, M. Daughaday, M. Muriuki, M. Cartmell, M. Ford, M. Devermont, M. Hedlund, M. Patterson, M. Murphy, M. Bassnett, M. Lovely, M. Schiff, M. Bylinsky, C. Fitzgerald, M. Danielson, M. Morrow, M. Corwin, M. Schreiner, M. Metts, M. Stevenson, M. Vystoropskyi, M. Brownlee, M. Shamp, M. Sattler, M. Ross-Lee, M. Bueche, M. Fitzsimmons, M. Borisoff, M. Larter, M. Cunningham, M. Williams, M. Alley, M. Adler, M. Murray, L. Deacon, M. Kruger, M. Bryant, M. Lee, P. Johnston, M. Sanford, N. Offor, M. Saint, R. Borbidge, M. Reese, M. Langley, M. Howard, M. Stewart, M. Morrison, M. Kennedy, M. Aron, M. Rockett, M. Kingston, M. Daniluk, M. Schoen, M. Lee, M. Huch, M. Chaffee, M. Simmons, M. Herman, M. Vaal, M. Canning, M. Kochkov, M. Fullwood, G. Belsak, M. Bergman, M. Armstrong, M. Bottaccini, M. Farabee, B. Gaalen, M. Haan, M. Hoffman, E. Garland, M. Everest, M. Venzor, M. Frederick, M. Peraza, W. Ruf, M. Matters, M. Smith, M. Hansen, M. Edris, M. Souter, M. Smith, M. OBrien, M. Provost & M. Nimmerjahn. PAPER Check out my paper at https://arxiv.org/abs/2605.02969 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. You can see all of our past music here: https://open.spotify.com/playlist/0Bu2UQlKDb0KaeliLZUOZn 0:00 Falls - Life in Binary 1:52 Sid Acharya - Searching for Answers 5:06 Atlas - Waking Up 6:28 Brad Hill - World of Wonder 7:46 Chris Zabriskie - Music from Neptune Flux 01 8:28 Scott Buckley Dragon’s Lullabye 10:33 Hill - It Wasnt Mine To Begin With 14:10 Hill - Don’t Think 20:20 Hill - When Darkness is No Longer Dark 23:44 Hill - Mourning Wakes CHAPTERS 0:00 The Cycle of False Hope 1:53 A Century of Alien Claims 5:07 Why This Keeps Happening 6:28 Novium 7:47 It’s all Aliens! 8:28 -A Claim of Last Resorts 10:33 Unknown Unknowns 11:59 The Phosphine Case Study 18:04 A/B Testing 21:15 High Stakes Experiments 23:45 Final Thoughts 24:32 Outro #Aliens #Astrobiology #CoolWorlds Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Wednesday · 9 min

    Discovery of a Jupiter Twin: QandA

    We recently announced the discovery of the first Jupiter-like planet seen to transit its star. Thanks to all of you who watched our last video (link below!). There were some great questions posted in the comments and elsewhere, so in this video the discovered, Prof Kipping, answers your questions directly! ::More about this Video:: ► Our video announcing the discovery of Kepler-167e: https://youtu.be/ZTKVC2zBElA ► Kipping et al. (2016), "A Transiting Jupiter Analog": https://arxiv.org/abs/1603.00042 ► Centauri Dreams blog article: http://www.centauri-dreams.org/?p=35135 ► Bryan et al. (2016), "Statistics of Long Period Gas Giant Planets in Known Planetary Systems": http://arxiv.org/abs/1601.07595 ► 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

  • Wednesday · 34 min

    What If Intelligence Re-Emerges?

    Visit our sponsor, Brilliant.org: https://brilliant.org/CoolWorlds. Astronomers are on a quest to search for life in the Universe. Two different pathways lay ahead for this hunt, biosignatures and technosignatures. Today, we discuss the arguments for and against each and consider that intelligence could be a far more persistent phenomenon that we might naively think - with important consequences for astronomers... Written and presented by Prof David Kipping of Columbia University → Support our research program: https://www.coolworldslab.com/support → Get Stash here! https://teespring.com/stores/cool-worlds-store THANK-YOU to our supporters T. Widdowson, D. Smith, M. Sloan, L. Sanborn, C. Bottaccini, D. Daughaday, A. Jones, S. Brownlee, Z. Star, T. Zanjonc, C. Wolfred, F. Rebolledo, L. Skov, E. Wilson, M. Elliott, B. Daniluk, J. Patrick-Saunders, M. Forbes, S. Vystoropskyi, S. Lee, Z. Danielson, C. Fitzgerald, V. Alexandrov, L. Macchia, C. Souter, M. Gillette, T. Jeffcoat, H. Jensen, F. Linker, J. Rockett, N. Fredrickson, B. Mlazgar, D. Holland, J. Alexander, E. Hanway, J. Molnar, D. Murphree, S. Hannum, T. Donkin, K. Myers, A. Schoen, K. Dabrowski, J. Black & R. Ramezankhani. ::Music:: Music licensed by SoundStripe.com (SS) [shorturl.at/ptBHI], or via Creative Commons (CC) Attribution License (https://creativecommons.org/licenses/by/4.0/), or with permission from the artist ► Joachim Heinrich - Stratosphere ► Brad Hill - A Slowly Lifting Fog [https://open.spotify.com/track/0GgkyL3y22kFslT6wUsKlt?si=35f82c623b9f486d] ► Chris - Cylinder Five ► Falls - Life in Binary ► Chris - Cylinder Five ► Falls - Ripley ► Chris - The Sun is Scheduled to Come Out Tomorrow ► Joachim Heinrich - Y ► Indive - Trace Correction ::Video clips:: ► Iceland footage by Louis Houiller ► Canada footage by Florian Nick/Arc'teryx ► Starry timelapse by Kuba Jurkowski ► Earth zoom-out by ESO/L. Calçada/M. Kornmesser ► Flask burning video by Science Skool ► Plankton bloom by Planet Ocean ► Wildfire footage by Meese Engine and The Atlantic ► Space debris animation by ESA ► JWST footage by NASA's Goddard Space Flight Center ► HabEx animation by NASA/JPL/Caltech ► LUVOIR animation by NASA's Goddard Space Flight Center ► The Thinker by Great Art Explained ► Rotating planet animation by Space Telescope Science Institute’s Office of Public Outreach ► Paranal timelapse ESO/S. Guisard ► Oumuamua animation by ESO, M. Kornmesser, L.Calcada ► Colonization animation by Jonathan Carroll-Nellenback ► Sun evolving animation by ESA/Hubble (M. Kornmesser & L. L. Christensen) ► K2-18b animation by ESA/Hubble, M. Kornmesser ► Earth methane animation by NASA's Scientific Visualization Studio ► Greenhouse gas animation by djxatlanta ► Curiosity animation by NASA Jet Propulsion Laboratory ► Stomatalites by Ed Austin ► Chlorophyll video by Sci- Inspi ► Bacteria videos by Nikon Small World 2020 ► Radio animation by Saturday's World ► NYC timelapse by the TV Series Metropolis ► Antartica base footage by the Smithsonian Channel ► Tristan de Cuna footage by Redfern Natural History Productions ► Easter Island drone footage by Michael Kohen ► Amazonian tribe footage by the BBC ► Hunting humans reconstruction by NHK WORLD-JAPAN ► Chimpanzee footage by BBC ► Earth in 4k by NASA/ESA/M.Kornmesser ► RCP 8.5 simulation by NASA's Scientific Visualization Studio and NASA Center for Climate Simulation ► Solar farms footage by VISION ► Wind farm footage by Jamie Jenkins ► Pyramid footage by Explore&Share ► Easter Island footage by EasterIslandWTM ► Stonehenge timelapse by Stonehenge Dronescapes ► Supercomputer footage by Verge Science ► Dancing robots by Boston Dynamics ► LUVOIR unfolding by AURA ::Film/TV clips used:: ► Papillon (2017) Bleecker Street ► Star Wars: The Last Jedi (2017) Walt Disney Studios Motion Pictures ► Ad Astra (2019) 20th Century Fox ► Gravity (2013) Warner Bros. Pictur Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Wednesday · 24 min

    We're Finally Unlocking the "Cosmic Shoreline"

    Use code coolworlds at https://incogni.com/coolworlds to get an exclusive 60% off an annual Incogni plan. Head to an exoplanet seminar or conference and you'll constantly hear astronomers talking about "the Cosmic Shoreline". But - what the heck is that? Why is it so important? And why is JWST dedicating a huge amount of telescope time to studying it? Written & presented by David Kipping, edited by Jorge Casas → Support our research: https://www.coolworldslab.com/support → Get merch: https://crowdmade.com/collections/cool-worlds → Check out our podcast: www.youtube.com/@CoolWorldsPodcast THANK-YOU to S. Shardool, M. Seay, M. McMillan, M. Popovski, M. Singh, M. Elliott, M. Donkin, M. Zajonc, M. Czirr, M. Williams, M. Daughaday, M. Muriuki, M. Cartmell, M. Ford, M. Devermont, M. Hedlund, M. Patterson, M. Murphy, M. Bassnett, M. Lovely, M. Schiff, M. Bylinsky, C. Fitzgerald, M. Danielson, M. Morrow, M. Corwin, M. Schreiner, M. Metts, M. Stevenson, M. Vystoropskyi, M. Brownlee, M. Shamp, M. Sattler, M. Ross-Lee, M. Bueche, M. Fitzsimmons, M. Borisoff, M. Larter, M. Cunningham, M. Williams, M. Alley, M. Adler, M. Murray, L. Deacon, M. Kruger, M. Bryant, M. Lee, P. Johnston, M. Sanford, N. Offor, M. Saint, R. Borbidge, M. Reese, M. Langley, M. Howard, M. Stewart, M. Morrison, M. Kennedy, M. Aron, M. Rockett, M. Kingston, M. Daniluk, M. Schoen, M. Lee, M. Huch, M. Chaffee, M. Simmons, M. Herman, M. Vaal, M. Canning, M. Kochkov, M. Fullwood, G. Belsak, M. Bergman, M. Armstrong, M. Bottaccini, M. Farabee, B. Gaalen, M. Haan, M. Hoffman, E. Garland, M. Everest, M. Venzor, M. Frederick, M. Peraza, W. Ruf, M. Matters, M. Smith, M. Hansen, M. Edris, M. Souter, M. Smith, M. OBrien, M. Provost & M. Nimmerjahn. REFERENCES Rocky Worlds DDT website https://rockyworlds.stsci.edu 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. You can see all of our past music here: https://open.spotify.com/playlist/0Bu2UQlKDb0KaeliLZUOZn 0:00 Falls - Life In Binary 4:38 Scott Buckley - Dragon’s Lullabye 5:57 Hill - World of Wonder 7:44 Sid Acharya - Searching for Answers 10:56 Atlas - Waking Up 13:21 Scott Buckley - Dragon’s Lullabye 15:15 Chris Zabriskie - The Sun is Scheduled to Come Out Tomorrow CHAPTERS 0:00 Teaser 0:24 The Martian Anchor 1:36 Atmospheric Loss 3:42 The M-Dwarf Factor 5:58 Incogni 7:45 The Shoreline is Born 10:43 Exoplanets Spoil the Party 13:10 The Empirical Shoreline 13:57 Going Ultraviolet 15:05 JWST Attacks the Shoreline 16:17 Final Thoughts 17:20 Outro and Credits #JWST #Exoplanets #CoolWorlds Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Wednesday · 8 min

    Reflections from an Alien World | Tiffany Jansen

    One of big projects here at the Cool Worlds Lan has been to try and detect reflected light off exoplanets. Tiffany Jansen has been leading this effort and here gives a 101 explainer as to how astronomers can do this and why it's so awesome! ::More about this Video:: ► Knutson et al. (2007), "A map of the day–night contrast of the extrasolar planet HD 189733b": https://www.nature.com/nature/journal/v447/n7141/full/nature05782.html ► Demory et al. (2013), "Inference of Inhomogeneous Clouds in an Exoplanet Atmosphere": https://arxiv.org/abs/1309.7894 ► Hu et al. (2012), "Theoretical Spectra of Terrestrial Exoplanet Surfaces": https://arxiv.org/abs/1204.1544 ► Kipping & Spiegel (2011), "Detection of visible light form the darkest world" https://arxiv.org/abs/1108.2297 ► Cool Worlds Lab website: http://coolworlds.astro.columbia.edu ► Columbia University Department of Astronomy: http://www.astro.columbia.edu ► Outro music by Daft Punk "Harder, Better, Stronger, Faster": http://www.daftpunk.com and http://smarturl.it/DaftPunkiTunes ::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 Tabby's Star ► http://bit.ly/TabbysStar 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

  • Wednesday · 8 min

    How to Characterize Proxima b's Atmosphere

    As regular watchers of the channel may remember, this summer astronomers announced the discovery of a potentially Earth-like planet orbiting our nearest star, Proxima Centauri. Sadly, research at the Cool Worlds Lab was unable to find any evidence that Proxima b transits its star, which is a blow for those hoping for near-term characterization of its atmosphere. But! Dr Jayne Birkby comes to the rescue and explains here how an alternative technique should work if we can wait a few years! Thanks to Jayne for visiting the lab and giving us all some hope for Proxima! ::More about this Video:: ► Dr Jayne Birkby homepage: http://home.strw.leidenuniv.nl/~birkby/wordpress/ ► Snellen et al. (2010), "The orbital motion, absolute mass, and high-altitude winds of exoplanet HD209458b": https://arxiv.org/abs/1006.4364 ► 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

  • Wednesday · 24 min

    How Astronomers Can Use Origami to Find Exomoons

    Visit our sponsor, MorningBrew at https://bit.ly/mbcoolworlds New research from the Cool Worlds Lab! Join us to learn about a new technique we've developed to search for exomoons - "Transit Origami". Written and presented by Prof David Kipping of Columbia University → Support our research program: https://www.coolworldslab.com/support → Get Stash here! https://teespring.com/stores/cool-worlds-store THANK-YOU to our supporters T. Widdowson, D. Smith, M. Sloan, L. Sanborn, C. Bottaccini, D. Daughaday, A. Jones, S. Brownlee, Z. Star, T. Zanjonc, C. Wolfred, F. Rebolledo, L. Skov, E. Wilson, M. Elliott, B. Daniluk, J. Patrick-Saunders, M. Forbes, S. Vystoropskyi, S. Lee, Z. Danielson, C. Fitzgerald, V. Alexandrov, L. Macchia, C. Souter, M. Gillette, T. Jeffcoat, H. Jensen, F. Linker, J. Rockett, N. Fredrickson, B. Mlazgar, D. Holland, J. Alexander, E. Hanway, J. Molnar, D. Murphree, S. Hannum, T. Donkin, K. Myers, A. Schoen, K. Dabrowski, J. Black & R. Ramezankhani, J. Armstrong, K. Weber, S. Marks, D. Kriha, H. Kruszynski, K. Bjärkefur, A. Koczan, M. Gaal, M. Zaenger & M. Samuels. ::Further Reading:: ► Kipping, D. (2021), "Transit Origami: A Method to Coherently Fold Exomoon Transits in Time Series Photometry", MNRAS, In Press: https://arxiv.org/abs/2108.02903 ► Kipping, D. (2020), "The exomoon corridor: Half of all exomoons exhibit TTV frequencies within a narrow window due to aliasing", MNRAS, 500, 1851: https://arxiv.org/abs/2012.00764 ::Music:: Music licensed by SoundStripe.com (SS) [shorturl.at/ptBHI], or via Creative Commons (CC) Attribution License (https://creativecommons.org/licenses/by/4.0/), or with permission from the artist ► Brad Hill - Searching [https://open.spotify.com/album/2oDAnUfX0OYYOnuIToAEcX] ► Joachim Heinrich - Stratosphere ► Falls - Life in Binary ► Joachim Heinrich - Cassiopeia ► Joachim Heinrich - Y ► Atlas - Waking Up ► Outro is by Tristan Armes - Orio [https://soundcloud.com/emergentmusic/sets/tristan-armes-halo-drive-ep] ::Video clips:: ► Starry timelapse by Kuba Jurkowski ► NASA animations by footage by NASA's Goddard Space Flight Center, Space Telescope Science Institute’s Office of Public Outreach, NASA/JPL/Caltech and NASA's Scientific Visualization Studio. ► ESO animations ESO, L.Calcada, M. Kornmesser ::Film/TV clips used:: ► Avatar (2009) 20th Century Fox ► Prospect (2018) DUST ► Clara (2018) D Films ::Chapters:: 00:00 A Dearth of Moons 10:07 Sponsorship 11:12 The Way of Origami 16:31 Where From Here? 17:49 Outro and credits #Exomoons # TransitOrigami #CoolWorlds Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Wednesday · 34 min

    Is Messaging Aliens a Bad Idea?

    We listen, but we don't send. Why do we expect aliens to transmit if we don't? Many have voiced concerns about any programs designed to broadcast our presence - afterall, they may not be friendly. Although it may be a popular idea in science fiction, what do scientists say about this scenario? Today we explore the arguments for and against messaging, and what it might imply about the type of civilization that chooses to engage in messaging... Written and presented by Prof David Kipping. Special thanks to Erik Wernquist for giving us permission to use a clip from his beautiful "Wanderes" short film (https://youtu.be/YH3c1QZzRK4) → 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 ► Sid Acharya - Stories from the Sky (0:00) ► Brad Hill - There Is But One Good (02:00) [https://open.spotify.com/album/4pmiXcyRpPlFjWjb45pYLx0] ► Falls - Ripley (05:54) ► Outside The Sky - Come Home (09:11) ► Chris Zabriskie - Cylinder Two (13:07) ► Joachim Heinrich - Y (16:18) ► Chris Zabriskie - Neptune Flux 1 (17:07) ► Brad Hill - Loneliness (18:30) [https://open.spotify.com/album/6vasPO2FKG0ddtkOiHmqBC?si=qWxcwquXSiaSXAeHFG6OMw] ► Chris Zabriskie - Neptune Flux 10 (21:46) ► Brad Hill - When It Feels Like The World Is On Your Shoulders (23:22) [https://open.spotify.com/album/6Y6yawX2LQVsr5Cizda4j9?si=aGyeEp7BSMGlMKgzrWtWvA] ► Indive - Trace Correction (25:42) ::Film/TV clips used:: ► Cosmos (PBS Television) ► Cosmos: A Space Odyssey (20th Television) ► Star Trek: The Next Generation (Paramount Television) ► Contact (Warner Bros. Pictures) ► War of the Worlds (Paramount Pictures) ► Valerian and the City of a Thousand Planets (EuropaCorp Distribution) ► Star Trek: Discovery (Paramount+) ► Arachnophobia (Buena Vista Pictures Distribution) ► Apocalypto (Buena Vista Pictures Distribution) ► Gladiator (Dreamworks Distribution LLC) ► Star Trek (Paramount Pictures) ► A River Runs Through It (Columbia Pictures) ► Independence Day (20th Century Fox) ► Arrival (Paramount Pictures) ► Close Encounters of the Third Kind (Columbia Pictures) ► The Watcher (Netflix) ► Star Wars: The Force Awakens (Walt Disney Studios Motion Pictures) ► Wile E. Coyote and the Road Runner (Looney Tunes) ► Margin Call (Lionsgate) ► Avengers: Infinity War (Walt Disney Studios & Motion Pictures) ► Casino Royale (Sony Pictures Releasing) ► Star Trek: Picard (Paramount+) ► The Hangover (Warner Bros. Pictures) ► Into The Wild (Paramount Vantage) ► Dallas Buyers Club (Focus Features) ► The Bucket List (Warner Bros. Pictures) ► Johnny Cash - Hurt (American Recordings) ► Game of Thrones (HBO) ► Prometheus (20th Century Fox) ► The Expanse (Legendary Television Distribution) ► Star T Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Wednesday · 18 min

    Did we find an exomoon?

    ::More about this Video:: ► Teachey & Kipping (2017), "HEK VI: On the Dearth of Galilean Analogs in Kepler and the Exomoon Candidate Kepler-1625b I": https://arxiv.org/abs/1707.08563 ► Alex's SciAm blog article: https://blogs.scientificamerican.com/observations/are-astronomers-on-the-verge-of-finding-an-exomoon/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+sciam%2Fspace+%28Topic%3A+Space%29 ► Cool Worlds Lab website: http://coolworlds.astro.columbia.edu ► Columbia University Department of Astronomy: http://www.astro.columbia.edu ► Background music by Thomas Bergersen "Final Frontier": http://www.thomasbergersen.com ::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 Tabby's Star ► http://bit.ly/TabbysStar 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

  • Wednesday · 31 min

    Why Starship Could Transform Astronomy

    SpaceX's Starship rocket is nearing first orbital tests. This Super Heavy launch vehicle promises to lift enormous masses into space, and do so at far cheaper costs than the competitors. What could these capabilities do for astronomy though? Join us today as we explore the potential transformative power of Starship for astronomy. Written & presented by Prof David Kipping. → Support our research program: https://www.coolworldslab.com/support → Get merch 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, M. Forbes, S. Vystoropskyi, S. Lee, Z. Danielson, C. Fitzgerald, C. Souter, M. Gillette, T. Jeffcoat, H. Jensen, J. Rockett, N. Fredrickson, D. Holland, E. Hanway, D. Murphree, S. Hannum, T. Donkin, K. Myers, A. Schoen, K. Dabrowski, J. Black, R. Ramezankhani, J. Armstrong, K. Weber, S. Marks, L. Robinson, F. Van Exter, S. Roulier, B. Smith, P. Masterson, R. Sievers, G. Canterbury, J. Kill, J. Cassese, J. Kruger, S. Way, P. Finch, S. Applegate, L. Watson, T. Wheeler, E. Zahnle, N. Gebben, J. Bergman, E. Dessoi, J. Alexander, C. Macdonald, M. Hedlund, P. Kaup, C. Hays, S. Krasner, W. Evans, D. Bansal, J. Curtin, J. Sturm, RAND Corp., I. Attard, M. Donovan, N. Corwin & M. Mangione. ::References:: ► House Science, Space, and Technology Committee video: https://science.house.gov/hearings/keeping-our-sights-on-mars-part-3-a-status-update-and-review-of-nasas-artemis-initiative ► Starship Update by SpaceX: https://youtu.be/3N7L8Xhkzqo ::Music:: Music licensed by SoundStripe.com (SS) [shorturl.at/ptBHI], or via Creative Commons (CC) Attribution License (https://creativecommons.org/licenses/by/4.0/), or with permission from the artist ► Hill - There is But One Good [https://open.spotify.com/album/4pmiXcyRpPlFjWjb45pYLx] ► Hill - Arc [https://open.spotify.com/album/4pmiXcyRpPlFjWjb45pYLx] ► Chris Zabriskie - Cylinder 2 ► Falls - Life in Binary ► Chris Zabriskie - The Sun is Scheduled to Come Out Tomorrow ► Atlas - Waking Up ::Film/TV clips used:: ► Interstellar (2014) Paramount Pictures ::Chapters:: 00:00 Prologue 00:48 Space Telescopes 05:10 Starship Background 07:38 Bigger is Better 10:42 What Makes Starship Different 16:32 Astronomy Benefits 21:41 Risk 22:46 Outro and Credits #SpaceX #Starship #CoolWorlds Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Wednesday · 27 min

    The Star That Can't Exist

    Visit our sponsor, Brilliant.org: https://brilliant.org/CoolWorlds The cosmos is littered with blue and red stars... but curiously no green ones. Why? Is this a fundamental constraint or merely an unlikely outcome? And what would it mean for humanity if we ever did detect a green star? Join us today as we explore this simple question with major implications. Written & presented by Prof David Kipping → 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, L. Sanborn, C. Bottaccini, D. Daughaday,A. Jones, S. Brownlee, G. Fulton, N. Kildal, M. Lijoi, Z. Star, E. West, T. Zanjonc, C. Wolfred, F. Rebolledo, L. Skov, E. Wilson, A. de Vaal, M. Elliott, B. Daniluk, M. Forbes, S. Vystoropskyi, S. Lee, Z. Danielson, C. Fitzgerald, V. Alexandrov, L. Macchia, C. Souter, M. Gillette, T. Jeffcoat, H. Jensen, F. Linker, J. Rockett, N. Fredrickson, B. Mlazgar, D. Holland, J. Alexander, E. Hanway, J. Molnar, D. Murphree, S. Hannum, T. Donkin, K. Myers, A. Schoen, K. Dabrowski, J. Black, R. Ramezankhani, J. Armstrong, K. Weber, S. Marks, L. Robinson, F. van Exter, S. Roulier, M. Hammer, J. Swigo & A. Murphy. ::Music:: Music licensed via Creative Commons (CC) Attribution License (https://creativecommons.org/licenses/by/4.0/) ► Brad Hill - Of Love and Loss [https://open.spotify.com/album/2oDAnUfX0OYYOnuIToAEcX] ► Joachim Heinrich - Cassiopeia ► Falls - Life in Binary ► Chris Zabriskie - Cylinder Five ► Falls - Ripley ► Indive - Trace Correction ::Film/TV clips used:: ► Contact (1997) - Warner Bros. Pictures ► Avengers: Endgame (2019) - Walt Disney Studios Motion Pictures ::Chapters:: 00:00 Prologue 00:59 The Dearth of Green Stars 05:25 Sponsorship 06:28 The Blackbody Approximation 10:51 Entering the Multiverse 13:04 The Viridian Flash 14:46 A Green Technosignature 18:37 Concluding Remarks 19:27 Outro and credits #NoGreenStars #Technosignatures #CoolWorlds Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Wednesday · 33 min

    How Thermodynamics Holds Back Negative Carbon Tech

    Go to our sponsor https://betterhelp.com/coolworlds for 10% off your first month of therapy with BetterHelp and get matched with a therapist who will listen and help. Direct Air Capture (DAC) has been getting more and more attention over the last few years. Could we avert climate change by pulling carbon dioxide out of the atmosphere? Could we not just stop, but actually *reverse* the damage done? Unfortunately, most don't fully appreciate just quite how much CO2 we've emitted and the outrageous scale of the problem facing us. Today, we apply the fundamental principles of thermodynamics to question whether this is even feasible. Written & presented by Prof. David Kipping. Edited by Jorge Casas. Fact checking by Alexandra Masegian. → 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, M. Forbes, S. Vystoropskyi, S. Lee, Z. Danielson, C. Fitzgerald, C. Souter, M. Gillette, T. Jeffcoat, J. Rockett, D. Murphree, 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, 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, B. Pearson, S. Thayer, T. Edris, A. Harrison, B. Seeley, F. Blood, M. O'Brien, P. Muzyka, E. Loomans, D. Lee, J. Sargent, M. Czirr, F. Krotzer, I. Williams, J. Sattler, & J. Smallbon. REFERENCES ► House, K. Z. et al. 2011, "Economic and energetic analysis of capturing CO2 from ambient air", Proc. Nat. Acad. Sci., 108(51), 20428-33: https://pubmed.ncbi.nlm.nih.gov/22143760/ ► Lackner, K. S. 2013, "The thermodynamics of direct air capture of carbon dioxide", Energy, 50, 38: https://www.sciencedirect.com/science/article/pii/S0360544212006901 ► Long-Innes, R. & Struchtrup, H. 2022, "Thermodynamic loss analysis of a liquid- sorbent direct air carbon capture plant", Cell Reports Physical Science, 3, 100791: https://www.sciencedirect.com/science/article/pii/S2666386422000583 ► Ozkan, M. et al., 2022, "Current status and pillars of direct air capture technologies", iScience, 25, 103990: https://www.sciencedirect.com/science/article/pii/S2589004222002607 ► Sanz-Perez E. S. et al., 2016, "Direct Capture of CO2 from Ambient Air", Chem. Rev., 116, 11840: https://pubs.acs.org/doi/10.1021/acs.chemrev.6b00173 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. ► Hill - A Slowly Lifting Fog [0:00] ► Falls - Life in Binary [3:24] ► Hill - Northern Boards [8:03] ► Hill - To Quiet the Drumming Inside My Head [11:13] ► Hill - Chasing out the Chaos [15:29] ► Chris Zabriskie - Cylinder Seven [19:23] ► Joachim Heinrich - Y [22:53] CHAPTERS 0:00 Climate Change 2:44 Removal Requirements 3:38 Possible Solutions 5:03 Introducing DAC 5:43 Climate Anxiety 7:12 DAC Principles 8:14 Scalability 9:29 Thermodynamics 12:08 Progressive DAC 13:32 RCPs 15:09 Simulations 17:03 Energy Requirements 19:34 Efficiency 21:21 Conclusions 24:35 Outro and credits #DirectAirCapture #ClimateChange #NetZero Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Wednesday · 32 min

    What's Stopping Us From Building a Warp Drive?

    Get a 7-day free trial and 25% off Blinkist Annual Premium by clicking here: https://www.blinkist.com/coolworldslab A faster-than-light (FTL) warp drive would arguably represent the most important invention of all time. In 1994, Miguel Alcubierre gave all of us hope as he found a solution within general relativity that would cause the necessary warping of space. But after nearly 30 years of further study, what does our current understanding of physics say about the feasibility of a warp drive? Written & presented by Prof. David Kipping. Thanks to Bobrick Martire for clarifications and to John Michael Godier and team for audio from their interview with Alcubierre (https://youtu.be/JafY92PhgKU). Thumbnail image by Zamanday Yolculugunu (www.zamandayolculuk.com) → 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, M. Forbes, S. Vystoropskyi, S. Lee, Z. Danielson, C. Fitzgerald, C. Souter, M. Gillette, T. Jeffcoat, J. Rockett, D. Murphree, 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, 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, B. Pearson, S. Thayer, T. Edris, A. Harrison, B. Seeley, F. Blood, M. O'Brien, P. Muzyka, E. Loomans, D. Lee, J. Sargent, M. Czirr, F. Krotzer, I. Williams & J. Sattler. REFERENCES ► Alcubierre 1994, Class. Quant. Grav. 11, L73 https://arxiv.org/abs/gr-qc/0009013 ► Everett 1996, Phys. Rev. D 53, 7365 https://journals.aps.org/prd/abstract/10.1103/PhysRevD.53.7365 ► Krasnikov 1998, Phys. Rev. D 57, 4760 https://arxiv.org/abs/gr-qc/9511068 ► Pfenning & Ford 1998, Phys. Rev. D 57, 3489 https://arxiv.org/abs/gr-qc/9710055 ► Van Den Broeck 1999, Class. Quant. Grav. 16, 3973 https://arxiv.org/abs/gr-qc/9905084 ► Bobrick & Martire 2021, Class. Quant. Grav. 38, 22 https://arxiv.org/abs/2102.06824 ► Fell & Heisenberg 2021, Class. Quant. Grav. 38, 16 https://arxiv.org/abs/2104.06488 ► Lentz 2021, Class. Quant. Grav. 38, 14 https://iopscience.iop.org/article/10.1088/1361-6382/abe692 ► Santiago et al. 2022, Phys. Rev. D 105, 064038 https://arxiv.org/abs/2105.03079 ► McMonigal et al. 2012, Phys. Rev. D 85, 064024 https://arxiv.org/abs/1202.5708 ► Finazzi et al. 2009, Phys. Rev. D 79, 124017 https://arxiv.org/abs/0904.0141 ► Coule 1998, Class. Quant. Grav. 15, 2523 https://iopscience.iop.org/article/10.1088/0264-9381/15/8/026 ► Van Den Broeck 1999, arXiv https://arxiv.org/abs/gr-qc/9906050 ► Gast 2021, Scientific American www.scientificamerican.com/article/star-treks-warp-drive-leads-to-new-physics/ ► Hawking 1992, Phys. Rev. D 46, 603 https://journals.aps.org/prd/abstract/10.1103/PhysRevD.46.603 ► Alcubierre & Lobo 2017, Wormholes, Warp Drives and Energy Conditions, Fundam. Theor. Phys. 189, 257 https://arxiv.org/abs/2103.05610 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 Sid Acharya - Searching for Answers ► 3:18 Falls - Life in Binary ► 5:01 Hill - There is but Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Wednesday · 36 min

    Are Alien "Lurkers" Watching You?

    Visit our sponsor, Private Internet Access to get digital privacy for $2.08/month: https://www.privateinternetaccess.com/CoolWorlds The search for alien intelligence is usually a framed as a search for life around other stars. But some have suggested that we should look within the Solar System instead - seeking so-called "Lurkers", alien probes sent here to monitor us. Today we explore this interesting idea, the motivations behind it and where we might actually try surveying. Written & presented by Prof David Kipping → 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, L. Sanborn, C. Bottaccini, D. Daughaday,A. Jones, S. Brownlee, G. Fulton, N. Kildal, M. Lijoi, Z. Star, E. West, T. Zanjonc, C. Wolfred, F. Rebolledo, L. Skov, E. Wilson, A. de Vaal, M. Elliott, B. Daniluk, M. Forbes, S. Vystoropskyi, S. Lee, Z. Danielson, C. Fitzgerald, V. Alexandrov, L. Macchia, C. Souter, M. Gillette, T. Jeffcoat, H. Jensen, F. Linker, J. Rockett, N. Fredrickson, B. Mlazgar, D. Holland, J. Alexander, E. Hanway, J. Molnar, D. Murphree, S. Hannum, T. Donkin, K. Myers, A. Schoen, K. Dabrowski, J. Black, R. Ramezankhani, J. Armstrong, K. Weber, S. Marks, L. Robinson, F. van Exter, S. Roulier, B. Smith, P. Masterson, A. Cook, J. Martinez, K. Nardone, L. Feng, M. Rydqvist, P. Schnakenburg & A. Moore. ::References:: ► Bohn et al. 2020, Two Directly Imaged, Wide-orbit Giant Planets around the Young, Solar Analog TYC 8998-760-1, ApJL 898, 16: https://arxiv.org/abs/2007.10991 ► Benistry et al. 2021, A Circumplanetary Disk Around PDS70 c, ApJL 916, 2: https://arxiv.org/abs/2108.07123 Pale Blue Dot NASA JPL/Caltech https://www.nasa.gov/feature/jpl/pale-blue-dot-revisited ► Benford 2019, Looking for Lurkers: Co-orbiters as SETI Observables, AJ 150, 5: https://ui.adsabs.harvard.edu/abs/2019AJ....158..150B ► Hippke 2020, Interstellar Communication Network. I. Overview and Assumptions, AJ 159, 10: https://arxiv.org/abs/1912.02616 ::Music:: Music licensed by SoundStripe.com (SS) [shorturl.at/ptBHI], or via Creative Commons (CC) Attribution License (https://creativecommons.org/licenses/by/4.0/), or with permission from the artist ► Brad Hill - Fragile [https://open.spotify.com/album/1QDRubBTOO50Kwb8MtRwjF] ► Chris Zabriskie - Cylinder Four ► Atlas - Waking Up ► Falls - Life in Binary ► Falls - Ripley ► Joachim Heinrich - Cassiopeia ► Brad Hill - A Slowly Lifting Fog [https://open.spotify.com/album/0i7df7bwsTHcJ7zRCHqq1G] ► Chris Zabriskie - Cylinder Five ► Chris Zabriskie - Cylinder Seven ► Joachim Heinrich - Stratosphere ► Indive - Trace Correction ::Video clip credits:: (See bit.ly/3lnqk8j for links) ► Licensed clips via Envato ► PHL @ UPR Arecibo, ESO ► ESA/Hubble, M. Kornmesser ► ESA/NASA/JPL/University of Arizona ► National Space Society/NASA ► ESO/L. Calçada, ALMA (ESO/NAOJ/NRAO)/Benisty et al. ► NASA’s Goddard Space Flight Center ► P. Horálek/ESO ► ESO ► ESO / L. Calçada https://eventhorizontelescope.org/ ► Eameses ► NASA/Goddard Space Flight Center, NOAA, Lockheed Martin ► NASA ► ESO, M. Kornmesser, L.Calcada ► NASA/ESA/M.Kornmesser ► NASA's Goddard Space Flight Center ► NASA Jet Propulsion Laboratory ► California Academy of Sciences ► NASA’s Goddard Space Flight Center ► NASA/Jet Propulsion Laboratory-Caltech ► NASA/Goddard Space Flight Center ► NASA/JPL/SwRI ► ESA/Hubble, NASA, ESO, M. Kornmesser ::Film/TV clips used:: ► The Straight Story (1999) Buena Vista Pictures Distribution ► The Truman Show (1998) Paramount Pictures ► Gravity (2013) Warner Bros. Pictures ► Contact (1997) Warner Bros. Pictures ► First Man (2018) Universal Pictures ► Rogue One: A Star Wars Story (2016) Walt Disney Studios Motion Pictures ► Interstellar (2014) Paramount Pictures ► Star Trek: Voyager (Paramount Television) Thumbnail by pc8650 htt Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Wednesday · 24 min

    Why Technological Civilizations Might Be Insanely Rare

    Sponsored by Perplexity! This is truly a game-changer – Perplexity Computer built this insane tool in only one prompt! Check out my tool and build your own today: https://pplx.ai/cool-worlds-youtube-1 Today's video explores the most terrifying calculation I've ever done, one that comes with some deeply unsettling implications for the Universe in which we live... Written & presented by David Kipping, edited by Jorge Casas → Support our research: https://www.coolworldslab.com/support → Get merch: https://crowdmade.com/collections/cool-worlds → Check out our podcast: www.youtube.com/@CoolWorldsPodcast THANK-YOU to S. Shardool, M. Seay, M. McMillan, M. Popovski, M. Singh, M. Elliott, M. Donkin, M. Zajonc, M. Czirr, M. Williams, M. Daughaday, M. Muriuki, M. Cartmell, M. Ford, M. Devermont, M. Hedlund, M. Patterson, M. Murphy, M. Bassnett, M. Lovely, M. Schiff, M. Bylinsky, C. Fitzgerald, M. Danielson, M. Morrow, M. Corwin, M. Schreiner, M. Metts, M. Stevenson, M. Vystoropskyi, M. Brownlee, M. Shamp, M. Sattler, M. Ross-Lee, M. Bueche, M. Fitzsimmons, M. Borisoff, M. Larter, M. Cunningham, M. Williams, M. Alley, M. Adler, M. Murray, L. Deacon, M. Kruger, M. Bryant, M. Lee, P. Johnston, M. Sanford, N. Offor, M. Saint, R. Borbidge, M. Reese, M. Langley, M. Howard, M. Stewart, M. Morrison, M. Kennedy, M. Aron, M. Rockett, M. Kingston, M. Daniluk, M. Schoen, M. Lee, M. Huch, M. Chaffee, M. Simmons, M. Herman, M. Vaal, M. Canning, M. Kochkov, M. Fullwood, G. Belsak, M. Bergman, M. Armstrong, M. Bottaccini, M. Farabee, B. Gaalen, M. Haan, M. Hoffman, E. Garland, M. Everest, M. Venzor, M. Frederick, M. Peraza, W. Ruf, M. Matters, M. Smith, M. Hansen, M. Edris, M. Souter, M. Smith, M. OBrien, M. Provost & M. Nimmerjahn. REFERENCES ► Kipping, D. (2026), "The Cosmological Hart-Tipler Conjecture": https://arxiv.org/abs/2606.04044 ► Hart, M. (1975), "Explanation for the Absence of Extraterrestrials on Earth": https://ui.adsabs.harvard.edu/abs/1975QJRAS..16..128H ► Tipler, F. (1980), "Extraterrestrial intelligent beings do not exist": https://ui.adsabs.harvard.edu/abs/1980QJRAS..21..267T ► Olson, S. J. (2015), "Homogeneous cosmology with aggressively expanding civilizations": https://ui.adsabs.harvard.edu/abs/2015CQGra..32u5025O ► Armstrong & Sandberg (2013), "Eternity in six hours: Intergalactic spreading of intelligent life and sharpening the Fermi paradox": https://ui.adsabs.harvard.edu/abs/2013AcAau..89....1 ► Forgan, D. (2019), "Predator-prey behaviour in self-replicating interstellar probes": https://ui.adsabs.harvard.edu/abs/2019IJAsB..18..552F ► von Neumann, J. (1966) "Theory of Self-Reproducing Automata": https://cba.mit.edu/events/03.11.ASE/docs/VonNeumann.pdf ► Ellery, A. (2022), "Self-replicating probes are imminent ─ implications for SETI": https://ui.adsabs.harvard.edu/abs/2022IJAsB..21..212E ► Borgue & Hein (2021), "Near-term self-replicating probes - A concept design": https://ui.adsabs.harvard.edu/abs/2021AcAau.187..546B 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. You can see all of our past music here: https://open.spotify.com/playlist/0Bu2UQlKDb0KaeliLZUOZn ► Amnesia OST - Ending Agrippa ► Scott Buckley - Dragon’s Lullabye ► Chris Zabriskie - Cylinder Four ► Hill - It Wasn’t Mine to Begin With ► Hill - World of Wonder ► Hill - Don’t Think ► Chris Zabriskie - Cylinder Two #FermiParadox #Aliens #CoolWorlds Learn more about your ad choices. Visit megaphone.fm/adchoices

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