Wait...you haven't read The Martian yet? Get on that ASAP. It's really really great.
I first heard about the book via The Weekly Space Hangout's talk with author Andy Weir. Andy is one of those guys that likes to calculate orbital dynamics as a hobby. All the science in the book is accurate, including the physics of space travel and the various orbital paths. He actually wrote software to track constant-thrust trajectories. To say that I appreciate that level of scientific detail and accuracy is an understatement. It really shows in the reading and, I think, makes the book that much more gripping.
In this promo video, Neil deGrasse Tyson focuses on The Martian's Ares 3 mission, giving us information about it Cosmos- and Star Talk-style. Neil reports to you as if he is in a real video talking about an actual mission to Mars. The video is part of a quite impressive viral marketing campaign out of 20th Century Fox, the studio filming the adaptation. The film stars Matt Damon, Jessica Chastain, and Kate Mara (to name a few) and is released on October 2nd. Can't wait!
Oh, and here's the trailer too: