I am so annoyed that I didn't love this as much as I thought I would! I sincerely loved how funny it was, and for once actually used the highlighting tool on my kindle to keep track of the things that made me laugh. And I really enjoyed the sections providing other perspectives, like the other crew, the NASA staff and their families. But I just got kinda sick of Mark's voice and the constant cycle of 'Something went wrong! Fix it with science and math. Something went wrong!' etc etc. I feel like I never got a proper idea of him as a character, I definitely would have liked more exploration into his life prior to the expedition, and more into the lives of his crew mates as well. The little that we got about them was great, I just wish there'd been more. It was full of suspense though, and definitely had me speeding through it to see how it would end- I finished it in two sittings. I just wish there'd been more human in the book and slightly less pure science.