The Star That Can't Exist

Visit our sponsor, Brilliant.org: https://brilliant.org/CoolWorldsThe 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-storeTHANK-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 Prologue00:59 The Dearth of Green Stars05:25 Sponsorship06:28 The Blackbody Approximation10:51 Entering the Multiverse13:04 The Viridian Flash14:46 A Green Technosignature18:37 Concluding Remarks19:27 Outro and credits#NoGreenStars #Technosignatures #CoolWorlds Learn more about your ad choices. Visit megaphone.fm/adchoices