When a massive star dies, it can leave behind a black hole. That much has been understood for decades. But the most monstrous black holes in the universe, the heavyweights detected by the faint ripples they send through the fabric of space and time aren't born that way at all. According to a new Car...
The Universe's Biggest Black Holes Aren't Born, They're Built
By system
May 14, 2026 •
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Original source:
Universe Today