A man pays off a fine by accepting an assignment to find out what happened around an experimental colony several light years away.
This was the best of the Hugo nominees I've read so far. It has, from what I've heard, that space opera Ken Macleod scope and interstellar travel. Thing is, it ended so abruptly. Can we get some closure? I could have done with some. Maybe a novel will follow. Ah well, I enjoyed it.
Listen to it here.