Thomas E. CravensTom Cravens is Professor of Physics and Astronomy at the University of Kansas. With more than 200 published papers, he has investigated the sources of X-rays throughout the Solar System as well as the upper atmospheres and ionospheres of most Solar Sstem planets and satellites, including Titan. A fellow of the American Geophysical Union, he is a team member of the Cassini Ion and Neutral Mass Spectrometer and author of the Cambridge University Press textbook Physics of Solar System Plasmas (1997). Read More Read Less