Our solar system has at least 170 moons orbiting the main planets. Before these moons were visited by spacecraft, astronomers expected them to be boring, dead objects devoid of any geologic features. We now know they are fantastic worlds - with features unlike anything seen on Earth: giant sulfur-spewing volcanoes, globally cracked ice-covered surfaces, liquid lakes of hydrocarbons, and colossal watery plumes. Yet many of these worlds are also earthlike and familiar. Titan, the giant moon of Saturn, has often been called an Earth in deep freeze, with cloud systems, lakes, shorelines, drainage fields and even perhaps rain. Scientists believe that the most likely places for life to evolve outside the Earth may be in the water-interiors of the moons Europa, Enceladus, and possibly Titan. Speaker: Dr. Bonnie Buratti JPL Senior Research Scientist Source: www.jpl.nasa.gov/events/lectures_archive.php?year=2010&month=7 Credits: NASA/JPL-Caltech The von Kármán Lecture Series General Information The Theodore von Kármán Lecture Series, named after JPL's founder, and presented by JPL's Office of Communication and Education, brings the excitement of the space program's missions, instruments and other technologies to both JPL employees and the local community. Lectures take place twice per month, on consecutive Thursdays and Fridays. The Thursday lectures take place in JPL's Theodore von Kármán Auditorium and are streamed live via Ustream, and Friday lectures take place at Pasadena City College's Vosloh Forum. Both start at 7:00 PM. Admission and parking are free for all lectures, no reservations are required, and seating is limited. Support the Channel vie BOOK DEPOSITARY Shopping Book Depository: Millions of books with free delivery worldwide www.bookdepository.com/?a_aid=Booklibrary FOLLOW THE CHANNEL ON TWITTER twitter.com/FREESPACELIVE Enjoy, Share, Like and Subscribe:)