The age-old question of how our home planet and its satellite originated has in recent times undergone a minor revolution. The emergence of the "giant impact th

On January 20-21, 1964, the Institute for Space Studies of the Goddard Space Flight Center, National Aeronautics and Space Administration, was host to an intern

Biographical note: Professor Erik M. Galimov, Vernadsky Institute of Geochemistry and Analytical Chemistry, Russia; Professor Anton M. Krivtsov, St. Petersburg

Since the beginning of civilization, the origins of the Earth and Moon have been the subjects of continuing interest, speculation, and enquiry. These are also a