PROS: Excellent use of space science; doesn’t overstay its welcome; solid prose.
CONS: An ending that feels a bit forced even given its symbolic power.
VERDICT: Interesting premise with solid, if not quite perfect, execution.
The USSR and America have ruined the world in a thermonuclear conflagration. The fate of astronauts stranded on a moonbase, their return capability extremely limited, seems to be to slowly die even as the Earth did. But fortunately, they have a Nazi wonder weapon: a device to move an area into a parallel timeline. And so the search is on for a timeline which has not died in nuclear fire, and has a space program far enough along to help them get off of the Moon. But even when such a timeline is found, the technical challenges in getting back to Earth are not the least bit trivial, to say nothing of the psychological strains of their ordeal…