For anyone unfamiliar with the story, Mark Watney is an ... Mars in under a Martian day. To get longitude he simply observes when Phobos dips below the horizon and plugs the time into a complex ...

In "The Martian", Matt Damon plays astronaut and botanist Mark Watney, who is abandoned on Mars and has to figure scientific ways to survive the harsh Martian climate until he can be rescued.

20th Century Fox has released the first trailer for its anticipated fall film “The Martian,” and it looks ... the story follows astronaut Mark Watney (Damon) as he’s left behind on Mars ...