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December 3, 2002 12:00 AM (EST)

News Release Number: STScI-2002-27

Hubble Makes Precise Measure of Extrasolar World's True Mass

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Giant World Orbiting Red Dwarf Star Gliese 876 Image Type: Artwork Giant World Orbiting Red Dwarf Star Gliese 876PRC2002-27 Artist's Concept
Measuring Minute Variation in the Motion of Star Gl 876b Due to the Gravitational Pull of its Companion Image Type: Illustration Measuring Minute Variation in the Motion of Star Gl 876b Due to the Gravitational Pull of its Companion
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