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Lucky Starr and the Moons of Jupiter

Lucky Starr and the Moons of Jupiter
LuckyStarr5.jpg
Cover of the first edition
Author Isaac Asimov
Illustrator Albert Orbaan
Cover artist Darrell K. Sweet
Country United States
Language English
Series Lucky Starr series
Genre science fiction
Publisher Doubleday & Company
Publication date
August 1957
Media type Print (hardcover and paperback)
Pages 192
Preceded by Lucky Starr and the Big Sun of Mercury
Followed by Lucky Starr and the Rings of Saturn

Lucky Starr and the Moons of Jupiter is the fifth novel in the Lucky Starr series, six juvenile science fiction novels by Isaac Asimov that originally appeared under the pseudonym Paul French. The novel was first published by Doubleday & Company in August 1957. It is the only novel by Asimov set in the Jovian system.

Lucky Starr and the Moons of Jupiter takes place in the Jovian system. In the mid-1950s, when the novel was written, Jupiter had twelve known satellites. The first half of the novel takes place on what was then the outermost known satellite, Jupiter IX, discovered by Seth Barnes Nicholson in 1914. Jupiter IX had been given the unofficial name 'Hades' in 1955, but in the novel Asimov mistakenly refers to it as Adrastea, which was the unofficial name of Jupiter XII. The confusion doubtless arose from the fact that Jupiter IX was the twelfth farthest known satellite, while Jupiter XII was the ninth farthest known satellite. In 1975, the International Astronomical Union gave Jupiter IX the official name Sinope. Asimov describes Jupiter IX as being 89 miles in diameter, but its diameter is now thought to be only 23 miles.

Part of the novel is also set on Io, the innermost of the Galilean moons. Io is depicted as having a thin atmosphere of methane, and fields of ammonia snow and ice, as well as rivers of liquid ammonia.

For six years, Jupiter IX has been the site of a secret project to develop an antigravity, or Agrav, space drive; but the Council of Science learns that information from the project is released to the enemy Sirians. A month after returning from Mercury, protagonists David "Lucky" Starr and John Bigman Jones are sent to Jupiter IX to investigate, bringing a V-frog to aid the investigation.


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