NASA TechPort describes Lunar Flashlight as a completed Mars Campaign Office 6U CubeSat technology demonstration (2014-09-01 to 2018-09-30) led by Jet Propulsion Laboratory with Marshall Space Flight Center support. Its near-infrared laser reflectometer was designed to map water ice in permanently shadowed lunar craters while demonstrating interplanetary CubeSat operations and low-toxicity “green” propulsion for future exploration.