News Archives Astrobiology Science News 23 June 2006 By Keith Cowing June 23, 2006 The Expedition to the Sulfur Springs of Ellesmere Island, Planetary Society Arctic, Antarctic, Mars, Astrobiology Magazine Monte Carlo radiative transfer in protoplanetary disks, arXiv.org High Accuracy Matching of Planetary Images, arXiv.org First Fruits of the Spitzer Space Telescope: Galactic and Solar System Studies, arXiv.org Evidence of the gravitomagnetic field of Mars, arXiv.org Keith Cowing SpaceRef co-founder, Explorers Club Fellow, ex-NASA, Away Teams, Journalist, Space & Astrobiology, Lapsed climber. Follow on Twitter