Cutting-edge science

Euclid will examine visible and infrared light from distant galaxies using two onboard instruments: the VISible instrument (VIS) will take very sharp images of over a billion galaxies to measure their positions and shapes very accurately; the Near-Infrared Spectrometer and Photometer (NISP) will help astronomers measure the distances to these galaxies.

With information from VIS and NISP, scientists will construct a 3D map of the distribution of galaxies and dark matter in the Universe. The map will show how large-scale structure has evolved over time, tracing the role of dark energy in the evolution of the Universe.

Image description: Euclid’s VIS and NISP instruments installed in the spacecraft.