CHEOPS liftoff
CHEOPS liftoff A Soyuz rocket blasts off from French Guiana on 18 December carrying CHEOPS, the CHaracterising ExOPlanet Satellite. CHEOPS is a European Space Agency mission that will spend at least three-and-a-half years precisely measuring the diameters of known exoplanets. ESA / CNES / Arianespace Optique Video du CSG