A pair of monster black holes swirl in a cloud of gas in this artist's concept of AT 2021hdr, a recurring outburst studied by ...

A recently shared image of a distant galaxy surrounded by three concentric rings challenges our understanding of galactic ...

If another gravity theory is correct, "then the broader implications are enormous," astrophysicist Stacy McGaugh told ...

Fall evenings are perfect for astrophotography because the cool weather keeps those pesky mosquitoes away, which gives me ...

Here’s your guide to every playable Marvel Rivals character, plus their skills, class, lore, and team-ups.

US Department of Energy-fabricated Dark Energy Camera has captured imagery of barred spiral galaxy NGC 1512 and its neighbor ...

is a path of pale white light seen to span the night sky—at least if the viewer is far away from waste light spilling skyward ...

is a path of pale white light seen to span the night sky—at least if the viewer is far away from waste light spilling skyward from city lights. Historically, this milky path was known as “the” ...

Astronomers have watched a massive star vanish in the night sky, only to be replaced by a black hole. The supergiant star M31 ...

"It’s a very old and dead galaxy," co-author Tarraneh Eftekhari told Sky and Telescope. Recent research has pointed to ...

Black hole light echoes are an extreme form of gravitational lensing. To measure the masses and spins of black holes, ...