Today on Space Radio:How is Mars getting all its methane?Why is the speed of light the speed of light?Does everything make gravitational waves?How do we know what the big bang made?Why are there no green stars?Does Europa have space whales?Join the show recording every Thursday at 4pm ET by leaving a voicemail at www.SpaceRadioShow.com.Support the show on Patreon.Follow on Twitter | Facebook | Instagram | YouTube.Big thanks to my top Patreon supporters this month: John, Matthew K, Helge B, Justin Z, Matt W, Justin G, Kevin O, Duncan M, Corey D, Kirk B, Barbara K, Neuterdude, Chris C, Erik M, Steve C, Digitalneo, Erik M, Tim R, Neil L, Gordon M, Joe R, Neil P, Gabriella G, Tom S, Bryan D, Irene P, Dustin R, Matt C, Iothian53, Steve P, Debra S, Ken L, Alberto M, Ron W, Chris L, Mark R, Alan B, Stephen J, David P, John F, Maureen R, Frank T, Craig B, Jesse A, Ron S, Steven L, Mark R, Ulfert B, Dave L, Stace J, S Stark, Richard K, Vladimir Z, Carol S, Stephen M, Grace M, Jeremy K, Russell W, Thomas S, David B, Tamara F, Robert B, Fr Bruce W, Catherine R, Nicolai B, Sean M, Nate H, and Edward K!Produced by Greg Moebius at WCBE Radio Columbus.Hosted by Paul M. Sutter, astrophysicist at The Ohio State University, and the one and only Agent to the Stars.