Out of the Darkness

The Planet Pluto

By Clyde W. TombaughPatrick Moore, James W. Christy,

Publisher: Stackpole Books

Imprint: Stackpole Books

OUT OF THE DARKNESS: THE PLANET PLUTO tells the exciting scientific story of the twenty-five year search for a planet X beyond Neptune, and its discovery-the only planet found in the twentieth century.

$21.95