Our Island Universe Preserving Life on Mars WMRA | By Matt Bingay Published September 30, 2017 at 8:35 AM EDT Facebook Twitter LinkedIn Email Listen • 3:01 NASA / JPL On this episode of Our Island Universe: Taking steps to protect alien life as we explore the galaxy.Shanil Virani, Director of the John C. WellsPlanetarium, Harrisonburg, VA.Follow on Twitter as shanilv