Description

Scientists detected a black hole signal that should be impossible.
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In 2023, LIGO spotted a record-breaking signal that was initially dismissed as a glitch… until a second detector confirmed it. It wasn’t just a regular black hole merger, like LIGO has seen before. This was a crash between two black holes that, according to our models, shouldn’t exist at all.



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0:00 Colliding Black Holes
2:31 Gravitational Waves
4:07 LIGO
6:51 Impossible Signal
10:53 Impossible Black Holes
12:55 GW231123
14:55 Black Hole Magnetic Fields
17:29 Magnetic Explosions
18:59 Future Signals



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References:
“GW231123: A Binary Black Hole Merger”, via arxiv.org https://astrumspace.info/gw231123
“Scientists Found a Black Hole That Shouldn’t Exist”, via popularmechanics.com https://astrumspace.info/impossible_bh
“What are Gravitational Waves?”, via ligo.caltech.edu https://astrumspace.info/whataregw
“What is LIGO?”, via ligo.caltech.edu https://astrumspace.info/whatisligo
“Most Massive Black Hole Merger to Date”, via ligo.caltech.edu https://astrumspace.info/massivemerger
“Stationary Black Holes Uniqueness”, via arxiv.org https://astrumspace.info/bhuniqueness
“Black Holes Mass Gap”, via arxiv.org https://astrumspace.info/massgap
“Why Do Black Holes Spin?”, via scientificamerican.com https://astrumspace.info/bhspin
“Black Hole Spin and Evolution”, via arxiv.org https://astrumspace.info/spinevolution
“Direct-horizon Collapse as the Origin of GW231123”, via iopscience.iop.org https://astrumspace.info/directcollapse



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Credits:
Writer: Clementine Cheetham
Video Editor: Eduardo Solórzano
Researcher: Shourya Shrivastava
Script Editor: Damaris McColgan
Thumbnail Designer: Peter Sheppard
Publishing Lead: Georgina Brenner
Production Manager: Raquel Taylor
Edit Producer: Poppy Pinnock
Head of Astrum: Jess Jordan
Creator of Astrum: Alex McColgan



With special thanks to:
NASA/ESO/ESA/LIGO



#Astrum #Space #BlackHoles