Astronomers using W. M. Keck Observatory on Maunakea, Hawaiʻi Island have found compelling evidence of a dark matter-deficient dwarf galaxy, FCC 224. This ultra-diffuse galaxy is located on the ...

Once mistaken for a fuzzy star cluster, the stunning Squid Galaxy—formally known as Messier 77—has transformed in the eyes of astronomers over the centuries. Originally discovered in the 1700s by ...