Scientists have detected the largest black hole merger yet. What it is and why it matters

Muzammil Hussain July 16, 2025

Two black holes at the centre of thousands of stars, illustrating two black hole mergers.

It was a bump in the night. A big one. Astronomers revealed on Monday that two massive black holes collided producing another one that is 225 times the mass of our sun.

It was a bump in the night. A big one. Astronomers revealed on Monday that two massive black holes collided producing another one that is 225 times the mass of our sun. Two black holes at the centre of thousands of stars, illustrating two black hole mergers.

It was a bump in the night. A big one. Astronomers revealed on Monday that two massive black holes collided producing another one that is 225 times the mass of our sun.

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