Ground Control to 'The Martian': Good Luck with Them Potatoes

In the new movie "The Martian," released this week, fictional NASA astronaut Mark Watney (played by Matt Damon) gets stranded on Mars and must use his wits to survive. In it, Watney is part of NASA's Ares 3 mission to the Red Planet. Watney, impaled by a flying antenna, is assumed dead, while the other crewmembers, scrambling for their own lives, leave his body behind.