ESA’s Euclid mission aims to investigate dark matter, dark energy and the expanding Universe. Euclid will image billions of galaxies with unprecedented accuracy out to a distance of ten billion light-years. The survey will cover more than a third of the celestial sphere. These measurements will enable astronomers to improve their understanding of the expansion history of the Universe and the growth rate of cosmic structures.

The Euclid spacecraft consists of two major components: the service module and the payload module. The payload module comprises a 1.2-m-diameter telescope and two scientific instruments: a visible-wavelength camera (the Visual Imaging Channel, VIS) and a near-infrared camera/spectrometer (the Near-Infrared Spectrometer and Photometer, NISP). The service module contains the satellite systems: electric power generation and distribution, attitude control, data processing electronics, propulsion, telecommand and telemetry, and thermal control.

Learn more about Euclid.