galaxies

NGC 1052-DF9 is the third ultra-diffuse galaxy found lacking dark matter in a linear trail near NGC 1052, lending significant support to the Bullet Dwarf collision theory and challenging alternative gravity models.

James Webb Space Telescope identifies galaxy COSMOS2020-635829 at redshift z=1.156, the most distant jellyfish galaxy known, revealing cluster environments were stripping galaxies far earlier than models predicted.