GEO600 is a
gravitational wave detector located near
Sarstedt in the South of
Hanover, Germany. This instrument, and its sister interferometric detectors, when operational, are some of the most sensitive gravitational wave detectors ever designed. They are designed to detect relative changes in distance of the order of 10
-21, about the size of a single atom compared to the distance from the Sun to the Earth. GEO600 is capable of detecting
gravitational waves in the frequency range 50
Hz to 1.5 kHz. Construction on the project began in 1995.