How Cosmic Rays Make Astronauts See Stars

Some astronauts have reported the same specific symptoms: they see mysterious flashes of light out of the corner of their eyes. What causes those bizarre phenomena, and how does it affect astronauts? Learn more about Cherenkov Radiation: https://www.youtube.com/watch?v=_Kf2f_9MfPc Want more SciShow in person? We ll be at NerdCon: Nerdfighteria in Boston on February 25th and 26th! For more information, go to http://www.nerdconnerdfighteria.com/ Hosted by: Reid Reimers ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—we couldn t make SciShow without them! Shoutout to Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Benny, Kyle Anderson, Tim Curwick, Scott Satovsky Jr, Will and Sonja Marple, Philippe von Bergen, Bella Nash, Bryce Daifuku, Chris Peters, Patrick D. Ashmore, Charles George, Bader AlGhamdi ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/scishow ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://futurism.com/seeing-cosmic-rays-2/ http://www.nature.com/news/cosmic-rays-originate-from-supernova-shockwaves-1.12436 http://www.space.com/32644-cosmic-rays.html http://image.gsfc.nasa.gov/poetry/ask/q525.html http://math.ucr.edu/home/baez/physics/Relativity/SpeedOfLight/cherenkov.html http://www.nature.com/nature/journal/v230/n5295/abs/230522a0.html http://www.jstor.org/stable/1730913 http://www.space.com/33948-van-allen-radiation-belts.html http://www.thelancet.com/journals/lanonc/article/PIIS1470-2045(06)70695-7/abstract http://link.springer.com/article/10.1007%2Fs00417-002-0489-4 http://people.roma2.infn.it/~morselli/A58Sileye.pdf https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19720018401.pdf https://www.nasa.gov/mission_pages/station/research/experiments/137.html Image Sources: https://commons.wikimedia.org/wiki/File:Crshower2_nasa.jpg https://commons.wikimedia.org/wiki/File:Van_Allen_Belts.jpg https://commons.wikimedia.org/wiki/Category:Cherenkov_radiation#/media/File:RA6cab.jpg