LIGO Detects Gravitational Waves
Detection Portal • February 11, 2016
On September 14, 2015 at 5:51 a.m. Eastern Daylight Time (09:51 UTC), the twin Laser Interferometer Gravitational-wave Observatory (LIGO) detectors, located in Livingston, Louisiana, and Hanford, Washington, USA both measured ripples in the fabric of spacetime – gravitational waves – arriving at the Earth from a cataclysmic event in the distant universe. The new Advanced LIGO detectors had just been brought into operation for their first observing run when the very clear and strong signal was captured.
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
Gravitational waves sent out from a pair of colliding black holes have been converted to sound waves, as heard in this animation. On September 14, 2015, LIGO observed gravitational waves from the merger of two black holes, each about 30 times the mass of our sun. The incredibly powerful event, which released 50 times more energy than all the stars in the observable universe, lasted only fractions of a second.
Documentary • October 6, 2011
Einstein's Messengers is an award-winning documentary on LIGO, NSF's Laser Interferometer Gravitational Wave Observatory. The video examines how LIGO is spearheading the new field of gravitational wave astronomy and opening a whole new window on the universe.
Credit: National Science FoundationDownload Video
Congratulations LISA Pathfinder!
News Release • June 7, 2016
The LIGO team congratulates LISA Pathfinder on their results published in Physical Review Letters. LISA Pathfinder is testing the key technologies that will go into a space-based gravitational wave detector. Such detectors will complement ground-based gravitational wave detectors such as LIGO.
LIGO Founders Receive Two Major Scientific Awards
News Release • May 4, 2016
LIGO Mourns the Loss of Vladimir Braginsky
Feature Story • April 25, 2016
LIGO India MOU signed
News Release • March 31, 2016
LIGO Members Testify Before US Congress on Gravitational Wave Discovery
News Release • February 18, 2016
India Approves Construction of Third LIGO Observatory!
News Release • February 17, 2016