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Gaia Detected an Entire Swarm of Black Holes Traveling Through The Milky Way

Summary by Science Alert
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.

4 Articles

An apparently banal cluster of stars, scattered over a large part of the sky, would in reality conceal a large secret. Thanks to the data collected by the Gaia Space Telescope, astrophysicists have highlighted the presence of about a hundred black stellar mass holes in the heart of Palomar 5, a globular cluster located about ... Read more The article Palomar 5 reveals its secret: more than a hundred black holes in transit through the Milky Way a…

Astrophysicists have determined that over a hundred stellar-mass black holes may be hiding within the globular cluster Palomar 5, part of the Milky Way. Calculations suggest that their gravitational influence has shaped the object's distinctive morphology: an anomalously tenuous central core and a colossal stellar trail extending for tens of thousands of light-years. Palomar 5 is approximately 80... The post "About a Hundred Black Holes Discover…

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Science Alert broke the news in Australia on Friday, February 20, 2026.
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