Webb Telescope Spots Possible Jellyfish Galaxy 12 Billion Light-Years Away

Astronomers using the James Webb Space Telescope have identified a possible jellyfish galaxy about 12 billion light-years away. Named COSMOS2020-635829, it shows tentacle-like streams of gas and stars trailing off one side—likely formed through ram pressure stripping in a dense cluster. If confirmed, it would be the most distant jellyfish galaxy ever found, offering rare clues into galaxy evolution during the universe’s peak star-forming era. Though more data is needed to confirm its classification, this discovery highlights how cluster environments shaped galaxies even in the early cosmos.