In recent years, planetary science has seen a tremendous growth in new knowledge. Deposits of water ice exist at the Moon's poles. Discoveries on the surface of

This series offers a unique look at our Solar System and beyond for older children. Adopting a travel guide format, this original series takes the reader on a f

The inner planets--Mercury, Venus, Mars--are the foundations of what psychology calls the ego, the sense of personal self. In this fourth volume in the Seminars

An expert in planetary sciences offers an accessible synopsis of scientific knowledge about the celestial bodies with which we are most familiar--Mercury, Venus