Scientists have discovered an underground lake of liquid water on Mars! While this isn’t itself evidence for life on Mars, it does raise some new possibilities. Our SciShow Space episode about this: youtu.be/b8eNOOqi258 Hosted by: Hank Green Head to scishowfinds.com/ for hand selected artifacts of the universe! ---------- Support SciShow by becoming a patron on Patreon: www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters: Lazarus G, Sam Lutfi, Nicholas Smith, D.A. Noe, سلطان الخليفي, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Charles Southerland, Patrick D. Ashmore, Tim Curwick, charles george, Kevin Bealer, Chris Peters ---------- Looking for SciShow elsewhere on the internet? Facebook: www.facebook.com/scishow Twitter: www.twitter.com/scishow Tumblr: scishow.tumblr.com Instagram: instagram.com/thescishow ---------- Sources: science.sciencemag.org/cgi/doi/10.1126/science.aar7268 science.sciencemag.org/cgi/doi/10.1126/science.aau1829 www.space.com/30673-water-flows-on-mars-discovery.html www.space.com/21554-mars-toxic-perchlorate-chemicals.html Images: commons.wikimedia.org/wiki/File:Oblique_View_of_Warm_Season_Flows_in_Newton_Crater.jpg commons.wikimedia.org/wiki/File:The_unfolding_of_MARSIS_boom_2_continues_ESA218825.jpg www.nasa.gov/mission_pages/mars/images/marsis-caption-20080417.html commons.wikimedia.org/wiki/File:South_Polar_Cap_of_Mars_during_Martian_South_summer_2000.jpg