The black hole at the center of a galaxy named SDSS1335+0728, about 300 million light-years away, first showed signs of stirring when, in 2019, the galaxy started shining brightly.

Although we know that supermassive black holes (millions of times the mass of our sun) lurk at the center of most galaxies, their very nature makes them difficult to spot and study. In contrast to ...

(CN) — A massive black hole in a distant galaxy has suddenly become active, transforming it from a quiet neighbor into a brilliantly shining celestial object. In 2019, the galaxy SDSS1335+0728, ...

An illustration of the galaxy’s accretion disc, a supermassive black hole at its center. Illustration: ESO/M. Kornmesser The galaxy is SDSS1335+0728 (and that’s just its nickname—seriously!).

This is what it looks like when a black hole awakens. Astronomers say a previously “inactive” galaxy lit up as the massive black hole at its center started to feast on gas and dust, creating a ...

A monster black hole awakens and begins blasting out X-ray bursts. (Image credit: ESA) We've all woken up in a terrible mood from time to time, but a newly observed monster black hole is really ...

Terrifying moment black hole 'awakens' as scientists warn it could happen to our galaxy The galaxy is going through never-before-seen changers as the black hole exhibits extreme cosmic lights as ...

From boring to bursting: a giant black hole awakens. European Space Agency. Journal Nature Astronomy DOI 10.1038/s41550-025-02523-9. Keywords /Space sciences/ Astronomy ...

Although we know that supermassive black holes (millions of times the mass of our sun) lurk at the center of most galaxies, their very nature makes them difficult to spot and study. In contrast to ...

A Black Hole Awakens in a Distant Galaxy, Producing X-Ray Bursts Learn why a black hole is becoming active and why experts still can't explain the source of its regular, periodic pattern of X-ray ...

From boring to bursting: Giant black hole awakens Date: April 11, 2025 Source: European Space Agency Summary: Astronomers are investigating the longest and most energetic bursts of X-rays seen ...

From boring to bursting: a giant black hole awakens. European Space Agency. Journal Nature Astronomy DOI 10.1038/s41550-025-02523-9. Keywords /Space sciences/ Astronomy ...