» For the Latvian holiday Ligo, see Jāņi. LIGO, which stands for Laser Interferometer Gravitational-Wave Observatory,'s a large physics experiment which's attempting to directly detect gravitational waves. Cofounded in 1992 by Kip Thorne and Ronald Drever of Caltech and Rainer Weiss of MIT, LIGO's a joint project between scientists at MIT and Caltech. It's sponsored by the National Science Foundation (NSF). At the cost of $365 million (in 2002 USD), it's the largest and most ambitious… (More on Ligo)