Queloz, Didier

Didier Queloz

Didier Queloz is a Swiss astronomer at the Geneva Observatory who, as a postgraduate student from 1991 to 1995, worked with Michel Mayor and codiscovered the first extrasolar planet around a star similar to the Sun (see 51 Pegasi). From 1998 to 1999, Queloz was a distinguished visiting scientist at the Jet Propulsion Laboratory. Michel Mayor and Didier Queloz were also at the heart of a consortium, led by the Geneva Observatory with the help of ESO and other organizations, which developed the HARPS spectrograph, installed on ESO's 3.6-meter telescope at the La Silla Observatory in Chile in 2003.