LunarEclipse_Earth [00:00:00.400] A lunar eclipse as seen from Earth is leisurely, [00:00:03.480] taking three hours or more. [00:00:05.780] When the moon enters the umbra, [00:00:07.680] a dark biteout appears and grows - the partial phase. [00:00:12.040] When the moon is entirely inside the umbra, [00:00:14.860] totality begins and can last for an hour or more. [00:00:19.500] The moon appears red because the only light reaching it [00:00:22.960] is refracted through Earth's atmosphere. [00:00:26.280] One side may be brighter than the other because it is closer to the edge of the umbra. [00:00:31.560] When part of the moon emerges from the umbra, totality is over. [00:00:35.960] When all of the moon emerges, it's the end of the eclipse. [00:00:40.000]