Video - What Is a Leap Year?
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jueves, 1 de marzo de 2012
martes, 21 de diciembre de 2010
Lunar Eclipse Tonight + Winter Solstice—First in 372 Years
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Photograph by Heribert Proepper, AP |
I always remember the shortest day in year because it is my mom's birthday. This year we are very lucky as I've read on National Geographic's website:
In 2010, for the first time since 1638, a total lunar eclipse falls on the winter solstice—a stargazing event almost anyone in North America will be able to see tonight, weather permitting.
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