Portal

This story unfolds as it progresses. An astronaut is called back to earth to discover everyone gone, and then finds clues as more systems come online.
The backstory is filled in as he gets more details.
The astronauts interaction with the main computer, and the way the story is told in a logical manner, introducing the other main characters, and what happened, make this a novel that can be read many times.
As can happen with this type of sci-fi, some of the references to events and technologies seem dated now, but none of this distracts from the overall story. It really keeps you turning the pages to see what happened and what may happen.