Roy A. Gallant, called "one of the deans of American science writers for children" by School Library Journal, is the author of almost one hundred books on scientific subjects, including the best-selling National Geographic Society's Atlas of Our Universe. Among his many other books are When the Sun Dies; Earth: The Making of a Planet; Before the Sun Dies; Earth's Vanishing forests; The Day the Sky Split Apart, which won the 1997 John Burroughs award...