Concept:LIGO is an acronym for a large observatory designed to detect gravitational waves from cosmic events.
Explanation:LIGO stands for Laser Interferometer Gravitational-wave Observatory.
It is the world’s largest and most ambitious project funded by the National Science Foundation (NSF).
The observatory uses laser interferometry to measure tiny ripples in spacetime caused by massive cosmic collisions.
In 2017, the Nobel Prize in Physics was awarded to Rainer Weiss, Kip Thorne, and Barry C. Barish for their decisive contributions to the LIGO detector and the observation of gravitational waves.
Answer:Laser Interferometer Gravitational wave Observatory