On September 15, 2026, ESA presented a large image of the IC 348 star formation region obtained with the James Webb Space Telescope. Located about 1,000 light-years away in the Perseus constellation, this region contains young stars and objects too low mass to sustainably maintain hydrogen fusion. The 4866 observation program team was searching for these brown dwarfs. According to ESA, the data have identified objects that reach only twice the mass of Jupiter, which extends the study to a range of lower masses. A brown dwarf is not a planet in the usual sense of the term, even when its mass approaches. It is formed by the collapse of a cloud of matter, such as a star, but there can be no insulated mass sufficient to resolve a stellar mass.