Tobias OwenTobias Owen ranks among the world's leading experts on the solar system. He was awarded the NASA Medal for Exceptional Scientific Achievement for his work on the Martian atmosphere with the Viking Landers in 1976 and led the group of Voyager scientiss who discovered the rings of Jupiter in 1979. He is currently a member of scientific teams on the Galileo, Nozomi, CONTOUR, DS-1 and Cassini-Huygens missions. With David Morrison, he co-authored a college text, The Planetary System, and has written over 250 scientific and popular articles. He is professor of astronomy at the University of Hawaii where he studies planets, satellites, and comets with the giant telescopes on Mauna Kea. Read More Read Less