Title: The Gentle Giants of Ganymede
First published: 1978
Description: In the 21st century, on Ganymede, the largest moon of Jupiter, a huge alien spacecraft is discovered. The aliens originated on Minerva, a planet which used to obit between Mars and Jupiter but was destroyed 25 million years ago and has become the asteroid belt. Is there anything left of this ancient race?
Subjects: Human-alien encounters, Fiction, Non-Classifiable
Time periods: Aliens Races