Atlas, astronomical name Gerand 215a, was the innermost planet of the Gerand 215 system. Reddish in appearance, it was classified as a “hot Jupiter,” a gas giant that orbited a star rapidly and at close range. JT Austin wondered how Amargosa, a Class E planet, could exist in the same system.

Editor’s Note: The Kepler exo-planet observatory has discovered several hot Jupiters sharing systems with Earth-like or super Earth worlds. The effects on any possible life on those worlds is unknown at the time of this writing.