First-Ever Candidates for Young Brown Dwarfs Detected Outside the Milky Way by Webb

The Webb Telescope has identified potential young brown dwarfs in the star cluster NGC 602, located 200,000 light-years away in the Small Magellanic Cloud. This cluster, characterized by low concentrations of heavy elements and ongoing star formation, offers a unique glimpse into conditions similar to the early universe. Astronomers emphasized that this discovery is unprecedented and could not be achieved with ground-based observatories.

Brown dwarfs, ranging from 13 to 75 Jupiter masses, are free-floating objects not bound to stars, exhibiting similarities to gas giants. The collaboration between Hubble and Webb highlights the importance of observing substellar mass formation. This finding provides insights into the formation of stars and planets under the harsh conditions of the early universe and marks the first identification of such objects beyond the Milky Way.

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