A distant galaxy that lay quiet for decades has suddenly stirred, lighting up in dramatic bursts that have caught astronomers ...

Our new study of the nearby starburst galaxy Haro 11 has shown that strong X-ray-emitting superwinds may be a key mechanism enabling galaxies to leak ionizing radiation, which is believed to have ...

Every big galaxy has a supermassive black hole at its center, but scientists are still trying to fully understand how these ...

A black hole jet from the Centaurus A galaxy is "hitting something along its path," that is baffling astronomers. The Chandra ...

Astronomers using the Chandra X-ray Telescope have discovered an "exhaust vent attached to a “chimney” of hot gas blowing ...

"Thanks to the high resolution of our new images, we detected a faint structure on the northeast side of this supernova ...

Webb detected rare neon gas in M83. This may signal a hidden black hole, challenging the idea that the galaxy has only ...

Using the Australia Telescope Compact Array (ATCA) and Parkes 64-m telescope, an international team of astronomers has ...

Ansky, a once-dormant black hole, is now emitting powerful X-ray bursts, giving scientists a rare chance to study its activity in real time.

the galaxy started shining brightly. But since 2024, that black hole the astronomers nicknamed “Ansky” started producing X-ray bursts at regular intervals — almost as if Ansky was stretching, then ...

A massive black hole at the heart of a galaxy in the Virgo constellation is waking up, shooting out intense X-ray flares at ...

In 2018 astronomers at MIT and elsewhere observed previously unseen behavior from a black hole known as 1ES 1927+654, which ...