Post-apocalyptic story about a comet hitting earth, what lead up to the hit and rebuilding life after the hit. I think I read once that it was in the running to be turned into a movie but they made Deep Impact instead.
The story is now dated, but if you replace the Apollo references with Space Shuttle it could still be done.
A second was a book called The Raft, a true story from WWII about 3 Navy guys who had to ditch in the Pacific and survived 34 days on a little 4x8 life raft. Just found out though that it was made into a movie "Against the Sun" a couple of years ago. Watched it free on Amazon Prime the other night; pretty decent movie and stayed pretty true to the book.
Formally known as Cherrycracker