Mickey 7 book by Edward Ashton

"Dying isn't any fun--but at least it's a living. Mickey7 is an Expendable: a disposable employee on a human expedition sent to colonize the ice world Niflheim. Whenever there's a mission that's too dangerous--even suicidal--the crew turns to Mickey. After one iteration dies, a new body is regenerated with most of his memories intact. After six deaths, Mickey7 understands the terms of his deal--and why it was the only colonial position unfilled when he took it. On a fairly routine scouting mission, Mickey7 goes missing and is presumed dead. By the time he returns to the colony base, surprisingly helped back by native life, Mickey7's fate has been sealed. There's a new clone, Mickey8, reporting for Expendable duties"-- Published By St. Martin's Press on 2022-02-15