The Milky Way Is Missing Satellite Galaxies
There’s a big difference between the number of satellites that simulations predict, and the number we’ve actually seen with telescopes, but why? Hosted by: Reid Reimers SciShow has a spinoff podcast! It s called SciShow Tangents. Check it out at https://www.scishowtangents.org ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters: rokoko, Alex Hackman, Andrew Finley Brenan, Lazarus G, Sam Lutfi, D.A. Noe, الخليفي سلطان, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Charles Southerland, Patrick D. Ashmore, charles george, Kevin Bealer, Chris Peters ---------- 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://arxiv.org/abs/astro-ph/9901240 https://arxiv.org/abs/astro-ph/9907411 https://arxiv.org/abs/astro-ph/9810070 https://kipac.stanford.edu/highlights/dark-matter-subhalo-disruption-insights-simulations-and-machine-learning https://astrobites.org/2017/11/22/no-missing-satellites https://www.researchgate.net/publication/258259121_A_Baryonic_Solution_to_the_Missing_Satellites_Problem https://arxiv.org/abs/1009.4505 https://arxiv.org/abs/1602.05957 Images: https://svs.gsfc.nasa.gov/11293 https://www.eso.org/public/images/potw1511a/ https://fire.northwestern.edu/visualizations/ https://www.sdss.org/sdss-telescope/ https://commons.wikimedia.org/wiki/File:Large_Synoptic_Survey_Telescope_3_4_render_2013.png https://en.wikipedia.org/wiki/File:Close_up_of_Telescope_in_the_Dome.jpg http://www.tapir.caltech.edu/~phopkins/Site/animations/Movies_m12i/ https://svs.gsfc.nasa.gov/10135 https://svs.gsfc.nasa.gov/11894 https://svs.gsfc.nasa.gov/11388
