The Wandering Earth, by Liu Cixin

 I read this because of the hype surrounding Liu Cixin's more recent novel, The Three Body Problem. I wanted to read some of the author's work before I committed to the first of a trilogy of hard sci-fi. To get a feel for his style, and an idea of his ideas.

 This novella, I felt would be a great jumping-in point. I'm glad I gave it a go. High-concept science fiction is not something I read a lot of, but this was presented in a very readable manner. Some of the exposition is rather clunkily delivered through dialogue, but this may be a translation issue, and does not take away too much from the piece.

 A brilliant concept, that in order to survive the sun becoming a red giant, humanity must take to the stars. Deciding that a generation ship would not be sustainable for the distance, or the length of time of the journey, the powers that be decide to take the Earth instead, hence the title. 

 I don't know how accurate the science behind the story is, but that doesn't matter, it reads as plausible, and the suspension of dis-belief is as necessary here as in fantasy. 

 I look forward to reading more of this author's work, even if it might take a while to wrap my head around the science.