Astronomers have made a groundbreaking discovery: a swarm of over 100 stellar-mass black holes is traversing through the Milky Way within the star cluster known as Palomar 5. This extraordinary cluster,

An artist's illustration of the longest black hole jet system ever observed. Nicknamed Porphyrion after a mythological Greek giant, these jets span roughly 7 megaparsecs, or 23 million light- years. That is equivalent to lining up 140 Milky Way galaxies back-to-back. Credit: E. Wernquist / D. Nelson (IllustrisTNG Collaboration) / M. Oei

The largest-ever black hole jets ever seen hint that these cosmic monsters may play an even more significant role in shaping galaxies than previously thought.

There's only one thing it could be: a black hole, one with a petite size that's smack bang in the middle of a mysterious void in the data known as the lower mass gap. Named G3425, it might have a lot to teach us about tiny black holes according to an analysis.

A fluffy cluster of stars spilling across the sky may have a secret hidden in its heart: a swarm of over 100 stellar-mass black holes. The star cluster in question is called Palomar 5. It's a stellar stream that stretches out across 30,

The largest known black hole jets, 23 million light years across, have been discovered in the distant universe. This pair of particle beams launched by a supermassive black hole is over a hundred times larger than our galaxy,