Keck Interferometer

The twin Keck Telescopes

The Keck Interferometer was a system in operation from 2003 to 2012 which allowed the light entering the twin Keck Telescopes to be passed through a system of adaptive optics to correct for turbulence in Earth's atmosphere, and combined through optical interferometry. The result of this technology was be to create an instrument with the resolving power of a single mirror 85 meters in diameter. The Keck Interferometer was used for a range of science programs, including studies of active galactic nuclei and the formation of stars and planets.