Lunar eclipse tonight
Last Full Lunar Eclipse until 2007The eclipse begins at shortly after 8 p.m. ET (5 PT), but the first hour or so won't be noticeable as the Moon becomes lightly shaded by Earth's outer shadow, called the penumbra. Things get real interesting at 9:14 p.m. ET (6:14 PT, when the Moon begins sliding into Earth's full shadow, or umbra.
A dark and growing scallop will then gradually envelop Earth's only natural satellite. Once in total shadow at 10:23 p.m. ET (7:23 PT), the Moon might turn a shade of deep red that frightened the ancients. No two eclipses are alike, however, and astronomers can't say for sure what color to expect, if any.
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