Amateur astronomers will have quite a bit to look at this weekend when the moon makes its closet approach to Earth in nearly two decades, passing at a distance of about 211,000 miles. Known as a perigee moon -- or by the colloquial moniker "supermoon" -- Saturday's full moon will appear 14% bigger and 30% brighter than normal, according to NASA. Some astrologers are blaming the phenomenon for the earthquake and tsunami that recently hit Japan, but that theory has been debunked by scientists.

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Space.com, CNN

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