Spin State by Chris Moriarty is a hard sci-fi murder mystery set thousands of years in the future on an alien planet. If you can wade through the tons of jargon in the first chapter of so (I couldn’t on the first reading), it’s a fun ride.
A famous scientist is burnt to a crisp deep within a mine. Tough as hell, severely cybernetically augmented Li and her world-spanning, snarky artificial intelligence ex-lover must figure out why.
I liked the characters, the dark mines where a lot of the action takes places, and enjoyed the fast-paced plot twists, even if I did get lost a few times.
Bottom line recommendation: Buy it used or get it at the library.