Hires_ringing_bh_maggie_chiang

Ringing Black Holes

When two black holes collide and merge, they release gravitational waves. These waves can be detected by the LIGO-Virgo-KAGRA detectors on Earth, allowing scientists to determine the mass and spin of the black holes. The clearest black hole merger signal yet, named GW250114, recorded by LIGO in January 2025, offers new insights into these mysterious cosmic giants. Credit: Maggie Chiang for Simons Foundation