David Grinspoon is Curator of Astrobiology in the Department of Space Sciences at the Denver Museum of Nature & Science and Adjunct Professor of Astrophysical and Planetary Science at the University of Colorado. An internationally known Planetary Scientist funded by NASA to study the evolution of Earthlike planets elsewhere in the universe, Dr. Grinspoon serves as an advisor to NASA on space exploration strategy. He serves as Interdisciplinary Scientist on Venus Express, the European Space Agency's first mission to Venus. He has also lectured and published widely. His first book, Venus Revealed, (Perseus Books, 1998) was a Los Angeles Times Book Prize finalist. David was also selected to be trained as a sub-orbital astronaunt and completed his training on the 13th of January 2010! His latest book, Lonely Planets: The Natural History of Alien Life won the 2004 PEN Center USA Literary Award for Research Nonfiction. His popular writing has appeared in Slate, Scientific American, Natural History, The Sciences, Seed, Nature, Astronomy, the Boston Globe, LA Times and the New York Times. His technical papers have been published in Nature, Science, and numerous other journals. Dr. Grinspoon has been featured on numerous television (PBS's Life Beyond Earth; BBC's The Planets) and radio (NPR’s Science Fridays, Wisconsin Public Radio, BBC World Service) shows. He has given invited talks at international conferences throughout the U.S., Europe, and Australia. The American Astronomical Society awarded him the 2006 Carl Sagan Medal for excellence in public communication of planetary science. Grinspoon is also an award-winning musician who has played guitar and sung in several great bands destined for obscurity. In fact, Dr. G played lead guitar for a band called the Geeks years before being a geek became cool. Grinspoon holds degrees in Philosophy of Science and Planetary Science from Brown University and a doctorate in Planetary Sciences from the University of Arizona. He lives in Denver with his three highly intelligent cats.