I believe so. They have (if I recall) viewed them with both visible and infrared spectrums. (found some photos) https://en.wikipedia.org/wiki/Ceres_%28dwarf_p

I believe so. They have (if I recall) viewed them with both visible and infrared spectrums. (found some photos) https://en.wikipedia.org/wiki/Ceres_%28dwarf_planet%29#/media/File:PIA19316-Ceres-DwarfPlanet-DawnMission-VIR-20150413.jpg https://en.wikipedia.org/wiki/Ceres_%28dwarf_planet%29#/medi...