IUVS made calibration observations of Mars on May 21, 2014, four months before Mars Orbit Insertion. Despite Mars’ great distance, IUVS detected the planet and obtained a spectrum of Mars’ sunlit disk in the mid-UV range. (more)

IUVS made calibration observations of Mars on May 21, 2014, four months before Mars Orbit Insertion. Despite Mars’ great distance, IUVS detected the planet and obtained a spectrum of Mars’ sunlit disk in the mid-UV range. (more)