Question

what happens if two black holes collide?????????????​

Answer 1

When two black holes collide, they make one bigger black hole. However, the mass of the bigger black hole is NOT the sum of the masses of the two smaller ones. It's a little bit less, because some of their mass is converted to energy and radiated away in gravitational waves.

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Answer 2

Explanation:

when they collide they form a bigger black hole