The moon broke into 7 pieces, and in 2 years Hard Rain (meteorites) will destroy Earth. And so human prepared to live in space. Epic storyline, 800 pages long, but you will wish for more. I have spoilers if you want.
By Keigo Higashino. This book is about a mother and her child who switched body after an accident. As a father myself, I could empathize the struggles.
Other mysteries by the Keigo Higashino:
A book written in 1932, describing a utopia world where children are grown from bottles, people are always happy, and there is no concept of family. Everyone belongs to everyone (yup, sex included)! There is a parallel to current civilization.
Kind of like Brave New World, but more grim, as Big Brother is watching every movement. It is published in 1949. You will find parallels with modern propaganda and political parties.