Long before the world of the Ganymeans blew apart, millennia ago, the strange race of giants had vanished. All that remained of them was a wrecked ship, abandoned on a frozen moon of Jupiter. Now Earth's scientists were there, determined to...
The man on the moon was dead. They called him Charlie. He had big eyes, abundant body hair and fairly long nostrils. His skeletal body was found clad in a bright red spacesuit, hidden in a rocky grave. They didn't know who he was, how he got...
In the 21st century, scientists Victor Hunt and Chris Danchekker, doing research on Ganymede, attract a small band of friendly aliens lost in time, who begin to reveal something of the origin of mankind. Finally, man thought he comprehended his...
Human society on Jevlen was falling apart -- and it looked as if JEVEX, the immense super-computer that managed all Jevlenese affairs, was at the heart of the matter. Except that the problems didn't stop when JEVEX was shut down. People were...
In Hogan's intriguing fifth SF novel in the series that began with Inherit the Stars (1978), Earth has reestablished contact with the Ganymeans, an alien race that manipulated proto-humans into homo sapiens on Minerva, a planet that once occupied...