LIGO Celebrates First Anniversary of Historic Gravitational Wave Detection!

Feature Story • September 14, 2016

Today, LIGO celebrates and reflects on the first ever detection of gravitational waves, made on September 14, 2015.

LIGO Does It Again: A Second Robust Binary Black Hole Coalescence Observed

News Release • June 15, 2016

On December 26, 2015, LIGO's detectors caught a second robust signal from two black holes in their final orbits and then their coalescence into a single black hole.

LIGO Detects Gravitational Waves

Detection Portal • February 11, 2016

Gravitational Waves Detected 100 Years After Einstein's Prediction

News Release • February 11, 2016

For the first time, scientists have observed ripples in the fabric of spacetime called gravitational waves, arriving at the earth from a cataclysmic event in the distant universe. This confirms a major prediction of Albert Einstein's 1915 general theory of relativity and opens an unprecedented new window onto the cosmos.

The Sound of Two Black Holes Colliding

Science Video • February 11, 2016