Safe to watch with the naked eye, the lunar eclipse should cast a bright orange or red tint across the moon. Not safe from the eclipse, however, may be a NASA spacecraft that's been circling the moon since fall. The robotic orbiter LADEE was never designed to endure a lengthy eclipse, and scientists don't know if it can withstand the prolonged cold of the hours-long eclipse. LADEE -- which stands for Lunar Atmosphere and Dust Environment Explorer -- was nearing the end of its mission anyway.