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 ...

Beams of light that can be guided into corkscrew-like shapes called optical vortices are used today in a range of ...