Lunar Eclipse (video) NASA/Goddard Space Flight Center Loading video... Caption It's not often that we get a chance to see our planet's shadow, but a lunar eclipse gives us a fleeting glimpse. During these rare events, the full Moon rapidly darkens and then glows red. Though a lunar eclipse can be seen only at night, it's worth staying up to catch the show. Credit NASA's Goddard Space Flight Center Usage Restrictions None Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.