Gravitational wave
Videos
Gravitational waves are waves of spacetime curvature produced by the relative motion of gravitating masses and which propagate away at the speed of light. They were first predicted by Albert Einstein
The gravitational wave spectrum with sources and detectors. Credit: NASA Goddard Space Flight Center
Artist's impression of merging neutron stars, a source of gravitational waves
Now disproved evidence allegedly showing gravitational waves in the infant universe was found by the BICEP2 radio telescope. The microscopic examination of the focal plane of the BICEP2 detector is shown here. In January 2015, however, the BICEP2 findings were confirmed to be the result of cosmic dust.
LIGO
Videos
The Laser Interferometer Gravitational-Wave Observatory is a large-scale physics experiment and observatory designed to detect cosmic gravitational waves. Prior to LIGO, all data about the universe ha
Gravitational wave
…first direct observation of gravitational waves was made in September 2015, when a signal generated by the merger of two black holes was received by the LIGO gravitational wave detectors in Livingston, Louisiana, and in Hanford, Washington. The 2017 Nobel Prize in Physics was subsequently awarded to Rainer…
The LIGO Livingston control room as it was during Advanced LIGO's first observing run (O1)
LIGO Hanford Observatory
LIGO Louisiana Observatory
Western leg of LIGO interferometer on Hanford Reservation