Interest in exoplanets--the worlds of other stars--is not new. From the late 17th century until the end of the 19th, almost all educated people believed that th

Sylvia Engdahl became fascinated by the idea of space travel in 1946, and has believed since the early 1950s that expansion of our species to other worlds is

The lead essay in this cellection by the author of Newbery honor book Enchantress from the Stars deals with issues that she wants readers of the novel to be awa

Starship pilot Terry Radnor is elated to be among those chosen to defend the secret colony Maclairn against enemies who pose a threat to the spread of paranorma