Astrobiology News 4 May 2007

  • SDSSJ104341.53+085558.2: The second white dwarf with a gaseous planetary debris disc, arXiv.org
  • Using Transit Timing Observations to Search for Trojans of Transiting Extrasolar Planets, arXiv.org
  • Pyroclastic Activity at Home Plate in Gusev Crater, Mars, Science
  • COROT discovers its first exoplanet, and catches scientists by surprise
  • NASA's Mars Rover Finds Evidence of Ancient Volcanic Explosion
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