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White holes and black dwarfs. Both objects are hypothetical, but there is a big difference in how likely they are to exist. In this episode, we'll talk about both white holes and black dwarfs, where these ideas came from, what their supposed properties are, and how likely they are. For advertising and collaboration inquiries, please contact [email protected] Support the "Space is Simple" project: Patreon: / cosmosprosto Yandex Money: https://money.yandex.ru/to/4100128004... Donation Alerts: http://www.donationalerts.ru/r/endgvard Paypal: https://www.paypal.me/cosmosprosto My video about how we know black holes exist: • How do we know black holes exist... PBS video about white holes: • White Holes Space Time Sources: White Holes https://phys.org/news/2015-10-white-h... https://www.space.com/white-holes.html https://jila.colorado.edu/~ajsh/bh/sc... https://www.pbs.org/wgbh/nova/article... https://earthsky.org/space/have-we-se... https://www.sciencealert.com/what-in-... https://briankoberlein.com/blog/in-th... https://jila.colorado.edu/~ajsh/insid... https://arxiv.org/pdf/1512.02061.pdf John Michel and the first ideas about black holes: http://articles.adsabs.harvard.edu/pd... White Holes to Explain Cosmic Rays https://arxiv.org/pdf/2004.12874.pdf https://physicsworld.com/a/the-riddle... White holes and the information paradox https://arxiv.org/ftp/arxiv/papers/18... https://arxiv.org/pdf/1802.04264.pdf https://arxiv.org/pdf/2009.04999.pdf Gamma-ray burst GRB 060614 https://www.nature.com/articles/natur... https://arxiv.org/ftp/arxiv/papers/11... Pair-unstable supernova https://www.quantamagazine.org/long-l... The lifespan of red dwarfs http://spiff.rit.edu/classes/phys230/... White dwarfs http://astronomy.nmsu.edu/geas/lectur... https://iopscience.iop.org/article/10... https://www.nature.com/articles/s4158... https://astronomy.swin.edu.au/cosmos/... The coldest white dwarf: https://iopscience.iop.org/article/10... The hottest white dwarf https://www.aanda.org/articles/aa/abs... The temperature of the cosmic microwave background http://www.astro.ucla.edu/~wright/CMB... Black dwarfs https://www.space.com/23799-black-dwa... https://www.forbes.com/sites/startswi... https://www.universetoday.com/41096/b... Black dwarf supernova https://www.livescience.com/black-dwa... https://arxiv.org/pdf/2008.02296.pdf