2026-09-14 · science
First Observation of Gravitational Waves
On September 14, 2015, physicists from the LIGO and Virgo projects made a groundbreaking discovery by observing gravitational waves for the first time. This phenomenon was predicted by Henri Poincaré in 1905 and confirmed the existence of ripples in spacetime caused by cosmic events. The detection originated from the merger of two black holes located over a billion light-years away, marking a significant milestone in astrophysics and opening new avenues for understanding the universe.
Fun fact. Gravitational waves were first detected from the merger of two black holes over a billion light-years away.