EUCLID
How did the Universe originate and what is it made of?
Euclid is an all-sky space mission designed to map the geometry of the dark universe. Its primary objectives are to understand the nature of dark energy and dark matter by accurate measurement of the accelerated expansion of the Universe through different independent methods.
Euclid is a European Space Agency (ESA) mission designed to accurately measure the expansion history of the universe and the growth of cosmic structures. The Euclid instruments are provided by the ESA member states, with NASA contributing to the NISP (near-infrared spectrometer and imaging photometer). The mission will carry out a large-area optical and near-infrared imaging survey and a spectroscopic survey in the wavelength range 1.1– 2.0 microns. Euclid will constrain dark energy, general relativity, dark matter, and the initial conditions of the universe with unprecedented accuracy.