Its name is NGC 1052-DF9, and it's neither the first, nor the second, but the third galaxy yet whose motions can be explained without dark matter.
International research has found the first evidence of a massive galaxy with no dark matter. The result is a challenge to the current standard model of cosmology.
Astronomers completed a 40-hour long observation of an ultra-diffuse dwarf galaxy and discovered no traces of dark matter. Galaxies without hints of dark matter had been previously discovered though these remain rare anomalies.
