Life on Mars is looking less likely. Two new papers published today in Nature argue that vulcanism and meteors, rather than standing water, are a better explanation for the results found by the Opportunity Rover, despite previous excited announcements by NASA in 2004.
posted by blahblahblah on Dec 21, 2005 - 13 comments

Virtual Iceland Field Trips. 'Interactive geological map of Iceland showing 7 areas for which virtual field trips can be viewed. Choose, for example, according to the geology or age of the country to see the variation in landscape. '
posted by plep on Jul 20, 2004 - 2 comments