Euclid

Euclid is a European Space Agency (ESA) space mission to study dark energy by determining redshifts of extragalactic objects. It is located at the Sun-Earth Lagrangian point L2, consisting of a 1.2-meter optical/infrared Korsch telescope with a 0.5 square-degree field of view (large, to support survey-work). It was launched in July 2023 with plans for a six-year primary mission. Instruments:

• VIS - visible-wavelength CCD camera (550-900 nm) with 600 million pixels.
• NISP - near-infrared camera/spectrometer (920-2000 nm) with 65 million pixels.