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ILLUSTRATION COURTESY DUNLAP INSTITUTE FOR ASTRONOMY AND ASTROPHYSICS A team of international scientists using the W.M. Keck Observatory on Mauna Kea has found water vapor in the atmosphere of a Jupiter-size planet around a distant star.
COURTESY KECK OBSERVATORY This is one of the discovery images of the system obtained by the Keck II telescope. The rectangle shows planet C, one of four gas giants known to orbit a star.