 Its observations confirmed the transits of the planet, with the same depth, at different wavelengths than the ones observed by CoRoT.The data then allows to validate CoRoT-7b as a bona-fide planet with a very high degree of confidence, independently from the noisy radial velocity data.Although CoRoT-7b's mass remains uncertain, with a range between 2 and 8 Earth masses, its radius and orbital period are well known from CoRoT photometry