University of Arkansas grad student Rebecca Mickol and her team have demonstrated that some Earth bacteria can survive in the extremely thin atmosphere of Mars. Could Martian bacteria thrive under the same conditions? Jason Davis looks at the Mars vs. moon debate among some space explorers. Bill Nye says former NASA Administrator Charles Bolden is concerned about at least one area of activity conducted by the agency. Mat visits during Bruce Betts’ live astronomy class for this week’s What’s Up.