9 tripped-out sci-fi technologies in 'The Martian' that NASA really uses
The movie is based on the best-selling recent novel by Andy Wier and explores the story of Mark Watney, a man marooned on Mars, and his struggle to survive.
While the premise is science-fiction, much of the NASA equipment and technology featured in the film is scientifically accurate. Here's a comparison of all the awesome, seemingly science fiction elements of the movie that actually exist as science fact.
Make sure you don't miss them when you see the film, which premiers on Oct. 2.