John Callas

Dec. 04, 2009

Free The Rover

NASA scientists are still trying to free the Spirit rover, which has been stuck in Martian soil since April.

mars, rover, spirit, nasa

Apr. 24, 2009

Checking In With the Mars Rovers

Mission managers are investigating unexplained reboots and 'amnesia events' on board the Mars rover Spirit. We'll get an update on the rovers' status.

mars, rovers, spirit, computer, robot

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Michael Pollan Talks Plants and Food

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Tar Noir: Paleoforensics at the La Brea Tar Pits

\tThe La Brea Tar Pits are  world-renowned fossil sites for good reason—they're the mass graves of thousands of Ice Age creatures, each with a story to tell. Researchers at the nearby Page Museum clean the asphalt from the fossil remains, and using paleoforensics, recount the grim details of their deaths. In the process, clues emerge about what life was like in prehistoric Los Angeles.

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