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Science 19 December 2003:
Vol. 302. no. 5653, p. 2037
DOI: 10.1126/science.302.5653.2037e
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NetWatch

In the summer of 1997, NASA's Sojourner, a robotic dune buggy about the size of a skateboard, kept earthly viewers enthralled as it trundled across the martian surface. Next month, if all goes as planned, Sojourner's big brother Spirit will land on the Red Planet for a longer reconnaissance. You can follow its first forays into the Gusev Crater with a series of Webcasts on 4 to 25 January from the Exploratorium in San Francisco. Outfitted with cameras, spectrometers, and a scraper to rasp rock surfaces, the golf cart-sized Spirit will snoop around for signs of life and water. The Webcasts will feature near-real-time images from the rover, interviews with project researchers and engineers, and commentary from guest experts. For the Webcast schedule, visit

www.exploratorium.edu/mars.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)