What's the size of the Milky Way galaxy? Learn how, depending on your definition, the size can change.

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Astronomers have confirmed the first known triple system in which all three galaxies host actively feeding, radio-bright ...

The borderlands of black holes ought to be chaotic spaces where the rate at which matter is drawn across into oblivion is held back only by the blinding fury of radiation spilling away from the edge ...

2025 was another big year for black holes, and here's our pick of the top black hole stories from the last twelve months.

ESA's Gaia mission, the Very Large Telescope and other ground-based telescopes have discovered stellar black hole Gaia BH3.

Black holes are among the most extreme objects in the universe, and now scientists can model them more accurately than ever ...

A new study on some 1,600 galaxies based on data from the Chandra X-ray Observatory reveals that many small galaxies do not ...

In a fresh discovery that's leaving astronomers awestruck, the James Webb Space Telescope has confirmed the existence of a ...

Using telescopes on Earth and in space, researchers traced GRB 250702B to the constellation Scutum, near the dense, dusty plane of the Milky Way. A separate study led by Jonathan Carney of the ...

Astronomers have made a truly mind-boggling discovery using the James Webb Space Telescope (JWST): a runaway black hole 10 ...

New data from the Euclid satellite confirm that galaxy collisions spark the brightest, fastest-growing black holes, offering fresh insight into how these cosmic giants form and evolve.