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Planets are common.
A brine martini - shaken and stirred . . This article by extrasolar planet discoverers by Geoffrey W. Marcy and R. Paul Butler appeared in the March 1998 issue of Scinetific American. The article provides an overview of the techniques used currently used to detect extrasolar planets as well as future techniques now under development. This August 1998 article from Science News describes different research teams hunting for extrasolar planets and an overview of the techniques they use to detect extrasolar planets. A Parade of New Planets - Astronomers are sighting new planets circling distant stars This page hosted by Scientific American examines the reaction to the first flurry of extrasolar planet disocveries in 1996.