Fourteen-year-old Ruthie rescues Rowen, an old man from the planet Seldor who has come to earth to study humans, when she finds him near death after his spacesh

The book gives an extended review of theoretical and observational aspects of neutron star physics. With masses comparable to that of the Sun and radii of about

Many generations ago, a mysterious cataclysm struck the world. Governments collapsed and people scattered, to rebuild where they could. A mutation, "the Change,

This wacky new series will have kids on the edge of their seats! This series is part of Scholastic's early chapter book line called Branches, which is aimed at

Explains how to deal with strangers in public places, on the telephone, and in cars, emphasizing situations in which the best thing to do is run away or talk to