Messier 87 (M87), also known as Virgo A or NGC 4486, is a supergiant elliptical galaxy in the Virgo constellation. It is one ...

By combining data from NASA’s IRAS and NuSTAR telescopes, scientists have uncovered more hidden supermassive black holes than earlier estimates suggested. Their findings indicate that over a third of ...

Astronomers have identified a quasar that may help explain how the universe’s “dark ages” finally ended. Astronomers have ...