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"Ray Arvidson, chair of the Department of Earth and Planetary Sciences at Washington University, has been in the news a lot lately. He's spending his sabbatical serving as deputy principal investigator of the Mars Rover mission."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.riverfronttimes.com/stlouis/hey-mr-spaceman/Content?oid=2463773>