Hawking's black hole area law confirmed by cosmic collision

LIGO, Virgo, and KAGRA detected gravitational waves from a black hole merger 1.3 billion light-years away.

The merged black hole's area increased, confirming Stephen Hawking's 1971 black hole area theorem.

The observed area increase matched Hawking's theoretical calculations with high precision.

This provides the strongest observational evidence yet for Hawking's black hole area law.