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NASA's James Webb Space Telescope has captured a large image of the star-forming region IC 348. Astronomers used it to search for brown dwarfs and discovered some with masses only twice that of Jupiter.
NASA’s James Webb Space Telescope has produced a detailed view of IC 348, a nearby star-forming region. The image is among the largest released from Webb to date. Astronomers used Webb to search this region for brown dwarfs, which are less massive than the smallest stars. They discovered brown dwarfs with masses just twice that of Jupiter.
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Stated by NASA
This discovery suggests brown dwarfs can form with masses comparable to giant planets, though the brief announcement does not detail how these objects formed or how certain the mass measurements are.
What the reporting says: Researchers using Webb discovered brown dwarfs just twice the mass of Jupiter in IC 348.
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How this story was checked. Written from the 1 page listed above, stored 15 September 2026; claims checked against that stored text on 15 September 2026.