... Tonight's Sky . ... Get to Know the Night Sky . ... Mars rover Curiosity uses arm camera at night . ... This image of a martian rock illuminated by white-light LEDs is part of the first set of nighttime images taken by the Mars Hand Lens Imager (MAHLI) camera at the end of the robotic arm of NASA's Mars rover Curiosity. ... NASA's Mars rover Curiosity for the first time has used the camera on its arm to take photos at night, illuminated by white lights and ultraviolet lights on the instrument. ...