Lucky Starr and the Moons of Jupiter

Isaac Asimov

Book 5 of Lucky Starr

Language: English

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Publisher: Doubleday

Published: Jan 2, 1957

Description:

In the first novella, an alien spy threatens to sabotage a secret project that could give the Earth overwhelming advantage in space, and in the second, the Sirian empires establishes an outpost on the Saturnian moon. Reprint.