The Encyclopedia of Cosmic Close Encounters, by Hal Povenmire
A scientific catalog of astronomical events which involved some danger to the earth and its inhabitants. Covers Meteorites, Meteroids, Asteroids, Comets, Space Debris, UFO's and other unproven events. Paperback, 166 pages with Photos.
An astronomer, Hal Povenmire has worked on Project Mercury, Project Apollo. He has photographed over 2000 meteors and discovered the Upsilon Pagasid Meteor Shower. He has observed over 400 grazing occultations, 6 stellar occultations by asteroids and 11 total solar eclipses. He authored the books, "Graze Observer's Handbook", "Tektites: A Cosmic Enigma", and "Fireballs, Meteors and Meteorites."
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