In the parallel world first introduced in S. M. Stirling's The Sky People, aliens terraformed Mars (and Venus) two hundred million years ago, seeding them with

Marc Vitrac was born in Louisiana in the early 1960's, about the time the first interplanetary probes delivered the news that Mars and Venus were teeming with l

Explores the possibilities of alternative history by changing the participants and the stakes in World War II

Rudi Mackenzie has won the battle that expelled the enemy from the new High Kingdom of Montival. Now he must free the people who live in the state once known as

When the Viking lander on the planet Minerva was destroyed, sending back one last photo of a strange alien being, scientists on Earth were flabbergasted. And so