Fly about 2,600 light-years to Hubble Space Telescope imagery of the Cygnus loop nebula. See images from 2001 and 2020.

Spoiler warning: Below there will be information about today's New York Times Strands puzzle.

RASC & Explore Scientific set to celebrate International Astronomy Day by hosting Global Star Party from historic David ...

The Mystery of Intermediate-Mass Black Holes Stellar-mass black holes, like the famous Cygnus X-1, which once cost Stephen Hawking a bet, form when massive stars collapse at the end of their lives. At ...

Ever since general relativity pointed to the existence of black holes, the scientific community has been wary of one peculiar ...

NGC 4945, a beautiful spiral galaxy over 12 million light-years away, hides a ferocious secret: a ravenous black hole at its ...

Quasars are distant galaxies ... X-Ray Flashes from a Nearby Supermassive Black Hole Accelerate Mysteriously Jan. 13, 2025 — Astronomers observed flashes of X-rays coming from a supermassive ...

A scientist from Tokyo Metropolitan University has solved the longstanding problem of a "dissonance" in gravitational waves ...