SciShow Space: The Cosmic Lasers That Form in Outer Space

Teacher or professor: SciShow Space
Subject: Astronomy, Astronautics, Astrophysics
Content of the Lesson: Get 10% off today—WITH FREE WORLDWIDE SHIPPING—by going to http://ridge.com/SCISHOW and use code “SCISHOW” at check out. Lasers are incredible narrow beams of light we can use to do everything from cutting metal to operating on people's eyeballs. But even though we came up with the idea on our own, humans didn’t actually make the first lasers. Host: Hank Green SciShow has a spinoff podcast! It's called SciShow Tangents. Check it out at http://www.scishowtangents.org ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: Kevin Bealer, Jacob, Katie Marie Magnone, D.A. Noe, Charles Southerland, Eric Jensen, Christopher R Boucher, Alex Hackman, Matt Curls, Adam Brainard, Scott Satovsky Jr, Sam Buck, Ron Kakar, Chris Peters, Kevin Carpentier, Patrick D. Ashmore, Piya Shedden, Sam Lutfi, Charles George, Christoph Schwanke, Greg ---------- 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://www.nasa.gov/home/hqnews/1995/95-148.txt http://web.ihep.su/dbserv/compas/src/einstein17/eng.pdf https://lasers.llnl.gov/education/how_lasers_work https://spaceplace.nasa.gov/laser/en/ http://laserstars.org/history/masers.html http://laserstars.org/history/hydroxyl.html https://press.uchicago.edu/Misc/Chicago/284158_townes.html https://www.nature.com/articles/187493a0 https://www.rp-photonics.com/optical_pumping.html https://spie.org/news/photonics-focus/janfeb-2020/astrophysical-lasers?SSO=1 https://www.eso.org/sci/facilities/eelt/owl/Files/publications/OWL-CSR-ESO-00000-0162_iss1.pdf https://apod.nasa.gov/apod/ap960111.html https://www.nasa.gov/home/hqnews/1995/95-148.txt https://www.haystack.mit.edu/ast/science/stars/index.html https://www.nature.com/articles/306640a0 https://www.jstor.org/stable/1353849?seq=1 https://phys.org/news/2012-12-masers-stellar-nurseries.html https://arxiv.org/pdf/1204.1059.pdf http://sait.oat.ts.astro.it/MSAIt890318/PDF/2018MmSAI..89..413C.pdf ------ Images: https://www.videoblocks.com/video/cnc-laser-cutting-of-metal-modern-industrial-technology-buhxnbwemjhyq2g6f https://www.spacetelescope.org/images/heic0601a/ https://commons.wikimedia.org/wiki/File:Einstein_1921_by_F_Schmutzer_-_restoration.jpg https://commons.wikimedia.org/wiki/File:Orion_Nebula_MPG_ESO_2.2-metre_telescope_at_the_La_Silla_Observatory.jpg https://www.istockphoto.com/photo/orion-nebula-gm1041379878-278808618 https://en.wikipedia.org/wiki/File:IC_443.jpg https://www.spacetelescope.org/images/heic1912a/ https://www.spacetelescope.org/images/potw1439a/ https://www.spacetelescope.org/videos/heic0707b/ https://photojournal.jpl.nasa.gov/catalog/PIA13930


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