EXPERIMENTAL GRAVITATIONAL & COSMOLOGICAL PHYSICS
THE RICHARDSON LAB
Since 2015, the Advanced LIGO and Virgo experiments have established gravitational waves as an entirely new observational probe of the Universe. Gravitational-wave detection is made possible by cavity-enhanced laser interferometry, which now achieves sub-attometer position sensing (10-18 m) over multi-kilometer baselines. LIGO operates two 4 km-long detectors located in Hanford, Washington and Livingston, Louisiana, with a third under construction near Aundha Nagnath, India.
To learn more about gravitational-waves, their detection, and the LIGO experiment, explore the following resources:
First observation of two coalescing black holes, GW150914. Image credit: LIGO/Caltech/MIT
View inside the LIGO Livingston control room during lock acquisition.
View inside the main interferometer hall, looking back towards the beamsplitter.