Wednesday, July 14, 2021

An Entire Swarm of Black Holes Has Been Caught Moving Through The Milky Way


 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.

If this finding can be validated, it will explain how the cluster came to be the way it is - with its stars spaced light-years apart, smearing out into a stellar stream stretching across 30,000 light-years.

The star cluster in question is called Palomar 5, located around 80,000 light-years away. Such globular clusters are often considered 'fossils' of the early Universe. They're very dense and spherical, typically containing roughly 100,000 to 1 million very old stars; some, like NGC 6397, are nearly as old as the Universe itself.

Read more at Science Alert.com

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