The latest sci-fi epic from director Ridley Scott stars Matt Damon as a future astronaut stranded on the forbidding environs of Mars. The 3-D film is a technical marvel, providing images we've never seen -- Martian electrical storms, for instance. But how close does the film stay to real science? Pretty close, it turns out.
The filmmakers worked with NASA during production and made scientific accuracy a priority. We talk to Doug Ming, chief scientist for NASA's Astromaterials Research and Science division about specific plot points in the film.