70 Ophiuchi

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Clean Energy & Climate Transition 03 Oct 2026, 02:57 PM IST

Astronomers Rule Out Giant Planet in Nearby Binary System, Sharpening the Search for Habitable Worlds

Astronomers have closed a long-running case around the 70 Ophiuchi binary star system, concluding that a giant planet once suspected there does not exist. The finding matters beyond astronomy: it refines how scientists model planetary formation in multi-star systems, which are among the most common stellar environments in the galaxy and a key frontier in the search for potentially habitable worlds.

By RDU Global Wire5 min read

World Sports03 Oct 2026, 08:56 AM IST

Astronomers Rule Out Giant Planet in Nearby Binary System After 171-Year Search

Astronomers have closed the book on a long-running claim that a giant planet orbits the nearby binary star system 70 Ophiuchi, ending a search that dates to the 19th century. New analysis suggests earlier signals were not evidence of a planet at all, but the result of stellar activity and observational noise. The finding sharpens the challenge of detecting worlds in complex multi-star systems, where false positives can persist for generations.

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