Today’s observatories document every pulse and flash in the sky each night. To understand how the cosmos has changed over longer periods, scientists rely on a more tactile technology.

New simulations show flickering black hole signals arise from unstable shocks inside accretion discs, revealing how matter ...

When astronomers look out into the cosmos, they see supermassive black holes (SMBH) in two different states. In one state, they're dormant. They're actively accreting only a tiny amount of matter and ...

Our Milky Way galaxy may not have a supermassive black hole at its center but rather an enormous clump of mysterious dark ...

Using data collected by NASA's Parker Solar Probe during its closest approach to the sun, a University of Arizona-led research team has measured the ...

Astronomers have caught a free‑floating “rogue planet” in the act of bulking up at a rate that defies intuition, swallowing ...

The first black hole ever photographed is no longer just a static ring of darkness. Astronomers have now traced a colossal ...

The canonical image of a supermassive spacetime abyss anchored at the center of our galaxy, Sagittarius A*, is challenged by ...

For decades, the motions of stars near the center of our Milky Way Galaxy have been treated as some of the clearest evidence ...

Long-held assumptions about what lies at the center of the Milky Way could be incorrect, as new international research ...

A newly identified quasar shows sustained growth beyond the Eddington limit, prompting new examination of accretion physics, radiation trapping and jet activity in early supermassive black holes.

Astronomers propose that an ultra-dense clump of exotic dark matter could be masquerading as the powerful object thought to ...