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For a few hours on the night of Dec. 20 to Dec. 21, the attention of tens of millions of people will be drawn skyward, where the mottled, coppery globe of our moon will hang completely immersed in the long, tapering cone of shadow cast out into space by our
Earth. If the weather is clear, favorably placed skywatchers will have a view of one of nature's most beautiful spectacles: a total eclipse of
the moon.
Unlike a
total eclipse of the sun, which is only visible to those in the path of totality, eclipses of the moon can usually be observed from one's own backyard. The passage of the moon through the Earth's shadow is equally visible from all places within the hemisphere where the moon is above the horizon.
The total phase of the upcoming event will be visible across all of North and
South America, as well as the northern and western part of
Europe, and a small part of
northeast Asia, including
Korea and much of
Japan. Totality will also be visible in its entirety from the
North Island of New Zealand and
Hawaii — a potential viewing audience of about 1.5 billion people. This will be the first opportunity from any place on earth to see the moon undergo a total eclipse in 34 months.
http://news.yahoo.com/s/space/20101217/sc_space/amazingspectacletotallunareclipsemondaynight