The size and spin of black holes can reveal how and where they were born, and gravitational waves offer a way to decode this information like a cosmic DNA test.

The black hole in the heart of the Milky Way, known as Sagittarius A* (pronounced “Sagittarius A-Star”), was discovered in the mid-1970s via its strong radio wave emissions.

Emergence of Calabi–Yau manifolds in high-precision black-hole scattering. Nature, 2025; 641 (8063): 603 DOI: 10.1038/s41586-025-08984-2 ...

Gravitational waves spotted by LIGO reveal two black holes, 140 and 100 times the mass of the sun, merged to become a 225 solar mass behemoth.

Researchers announced they have discovered the most massive black hole merger by detecting gravitational waves. Simulating eXtreme Spacetimes via Wikimedia Commons under CC BY-SA 4.0 In 2015, the ...