The math on this black hole should mass-humble every physicist who thinks we understand gravity.
— Aakash Gupta (@aakashgupta) April 12, 2026
M87's central black hole is 6.5 billion times the mass of our Sun. It's 38 billion kilometers across. It spins at 80% of the theoretical maximum speed allowed by physics. And it's… pic.twitter.com/IUUbx4pw4z
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