Eclipsed Moon in Infrared . ... However, the Midcourse Space Experiment (MSX) satellite had a spectacular view from Earth orbit and SPIRIT III , an onboard imaging infrared telescope, was used to repeatedly image the moon during the eclipse . ... The bright spots correspond to the warm areas on the lunar surface, dark areas are cooler. ... The series of SPIRIT III images allow the determination of cooling curves for geologically different areas, exploring the physical properties of the Moon's surface. ...