Lunar Eclipse Tonight!
Starting at 8:43p EST there will be a lunar eclipse. The moon will be totally covered from 10:01p and 10:51p. This will be your last opportunity to see a lunar eclipse until 2010.
From Wikipedia:
A lunar eclipse occurs whenever the moon passes through some portion of the Earth’s shadow. This can occur only when the Sun, Earth, and Moon are aligned exactly, or very closely so, with the Earth in the middle. Hence, the Moon is always full the night of a lunar eclipse. The type and length of an eclipse depend upon the Moon’s location relative to its orbital nodes.
Here is a diagram of how a lunar eclipse occurs.





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