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New image from the James Webb Space Telescope spectroscopic survey of NGC 1333. Credit: ESA/Webb, NASA & CSA, A. Scholz, K. Muzic, A. Langeveld, R. Jayawardhanahas uncovered six rogue worlds, including the lightest ever found with a dusty disk, in a detailed survey of the NGC 1333 nebula.might form in a similar way to stars.
New wide field view mosaic from the James Webb Space Telescope spectroscopic survey of NGC 1333 with three of the newly discovered free-floating planetary-mass objects indicated by green markers. Credit: ESA/Webb, NASA & CSA, A. Scholz, K. Muzic, A. Langeveld, R. JayawardhanaThe findings come from Webb’s deepest survey of the young nebula NGC 1333, a star-forming cluster about a thousand light-years away in the Perseus constellation.
Disks are also a prerequisite for the formation of planets, suggesting the observations may also have important implications for potential “mini” planets. These free-floating objects blur classifications of celestial bodies because their masses overlap with gas giants and brown dwarfs. Even though such objects are considered rare in thegalaxy, the new Webb data show they account for about 10% of celestial bodies in the targeted star cluster.
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