Earthlight
Arthur C. Clarke
 The short story details two astronomers caught outside their base on the Moon as a battle rages between the forces of Earth and the Federation of the outer planets of the solar system over possession of the Moon's supply of uranium. Differs dramatically from the novel in chronology - the story is set in c.2015, while the novel is c.2175. In most other respects the plot of the short-story is retained by the novel.