The Martian by Andy Weir
This is the best book I've read all year. Hands down. It's about a man who gets left behind during a mission to mars and has to survive on his own for over a year. If you can get past the first few sections where the MC is calculating potato calories, endlessly, it's so worth it. I'm wishing I had bough a copy of this instead of borrowed it from the library.
I feel like my BS in Biochem was rejuvenated. This geek girl loved the hard science banter mixed with humor. When I finished this book I wanted to go get my MS and work for NASA. An inspiring read. Just go read it.