
Drew Goddard, screenwriter of "The Martian," second from left, speaks during a panel discussion about NASA's journey to Mars and…

Mike Massimino, Columbia University professor and former NASA astronaut, far left, speaks during a panel discussion about NASA's journey to…

Dave Lavery, program executive for Solar System Exploration at NASA Headquarters in Washington, second from right, speaks during a panel…

Panelists listen to a question from the audience during a panel discussion about NASA's journey to Mars and the film,…

David Miller, NASA Chief Technologist, answers an audience members question during a panel discussion about NASA's journey to Mars and…

Dave Lavery, program executive for Solar System Exploration at NASA Headquarters in Washington, answers an audience members questions during a…

David Miller, NASA Chief Technologist, center, speaks during a panel discussion about NASA's journey to Mars and the film "The…

Members of the audience watch a short video during a panel discussion about NASA's journey to Mars and the film…

Mike Massimino, Columbia University professor and former NASA astronaut, speaks with members of the audience after a panel discussion about…

In the novel and movie "The Martian," an astronaut's adventures take him to the rim of Mawrth Crater. This image…