Frontiers : New Discoveries About Man and His Planet, Outer Space and the Universe by Isaac Asimov (1990, First Edition Hardcover). Light wear on the dust jacket. See all photos.
Frontiers probes the furthest boundaries of prehistory, science, earth space and the universe. It is a collection of short, topical and intriguing essays through which Isaac Asimov, the incomparable writer of science fiction, proposes brand new answers to classic scientific conundrums.