AaS! 233: Why Do We Care About Methane on Mars?

What's behind the Martian Methane Mystery? Is it a sign of life, or just some strange chemical process? Or are we just fooling ourselves? I discuss these questions and more in today's Ask a Spaceman! Support the show: http://www.patreon.com/pmsutter All episodes: http://www.AskASpaceman.com Watch on YouTube: http://www.youtube.com/PaulMSutter Read a book: https://www.pmsutter.com/books  Keep those questions about space, science, astronomy, astrophysics, physics, and cosmology coming to #AskASpaceman for COMPLETE KNOWLEDGE OF TIME AND SPACE! Big thanks to my top Patreon supporters this month: Justin G, Chris L, Alberto M, Duncan M, Corey Davoll, stargazer, Robert B, Naila, Sam R, John S, Joshua, Scott M, Rob H, Scott M, Louis M, John W, Alexis, Gilbert M, Rob W, Denis A, Jules R, Mike G, Jim L, Scott J, David S, Scott R, Heather, Mike S, Michele R, Pete H, Steve S, wahtwahtbird, Lisa R, Couzy, Kevin B, Tim R, Mark R, Alan B, Craig B, Mark F, Richard K, Stace J, Stephen S, Stephen J, Joe R, David P, Sean M, Tracy F, Sarah K, Ryan L, Ella F, Thomas K, James C, Syamkumar M, Homer V, Mark D, Bruce A, Steven M, Bill E, Tim Z, Linda C, The Tired Jedi, Farshad A, Gary K, David W, dhr18, Lode D, Bob C, Red B, Herb G, Stephen A, James R, Robert O, Lynn D, Jeffrey C, Allen E, Michael S, Reinaldo A, Jessica M, Sheryl, David W, Sue T, Josephine K, Chris, P. Sprout, Michael S, Erlend A, James D, Larry D, Matt K, Charles, Karl W, Den K, and George B! Hosted by Paul M. Sutter.