Are Dyson Spheres Actually Possible?

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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.

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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/196...
► Dyson, F. 1960, Science, 132, 250
► NASA IRB JWST Report 2018: https://www.nasa.gov/wp-content/uploa...
► Papagiannis, M. D. 1985, "SETI - a look into the future.", The search for extraterrestrial life: recent development, 543: https://ui.adsabs.harvard.edu/abs/198...
► 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/...) 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/7kYX7G...]
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

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