A massive filament of gas and dust, designated X7, has been elongated during its long approach to the Milky Way galaxy's ...

There's a universe full of black holes out there, spinning merrily away—some fast, others more slowly. A recent survey of ...

Sgr A*, at the heart of the Milky Way and clocking in at 4.3 million solar masses, is the closest supermassive black hole we have access to. It's also on the quiescent end of the activity scale, which ...