There's a new trailer out for The Martian, the Andy Weir sci-fi novel turned Matt Damon summer blockbuster. In it, we learn a lot more about astronaut Mark Watney's plight on the red planet, and what everyone else in the solar system is doing to help him.
Just a quick note, by the way: to be honest, this is probably where you should stop watching trailers and teasers for this movie if you don't want it spoiled for you. This particular trailer is pretty plot-heavy. Of course, if you've read the book or listened to the audiobook — which I highly recommend, by the way — then feel free to jump straight in. [YouTube]