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Less Massive than Saturn?

Astronomers pass a milestone in the search for new worlds

By
6:14pm, September 24, 2002

Planet hunters Geoffrey W. Marcy and R. Paul Butler have become frequent visitors to a telescope atop Hawaii's Mauna Kea. They come to search for alien worlds but often feel like they've landed on one. Rising 14,000 feet above the palm trees and lush vegetation, the windswept summit of this extinct volcano is nearly as pockmarked as the moon and as strewn with reddish rocks as Mars.

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