This novel is an expansion of the short story Rammer from the collection A Hole in Space. Jaybee Corbell wakes up after having being cryogenically frozen after death Now he must repay his debt to society (being cured of his cancer and woken up cost a lot of money) by piloting an exploratory ramship to seed planets around the galaxy, a mission that will take centuries. He rebels and takes his ship on a long tour of the galaxy at relativistic speeds, ending up back on earth millions of years later. Reminded me a little of The Time Machine by H.G. Wells, except for the lack of a means for return.
While the short story that formed the basis is fantastic, this novel length expansion, while solid, falls a bit short of the mark.