Calendars are tools that can be used to measure time and record events. They can also be used to plan future events. Cultures all around the world and throughout history have invented a variety of calendars to mark time. Official time is kept here, in the United States, based on the natural cycles of atomic clocks. Our...
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At Palenque, the famous Classic Maya site in the southern state of Chiapas, a poetic statement is replayed year after year in the written history as well as in the art and architecture of the site.
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You hear the word science used often these days. But, what do we mean when we talk about science and in the context of Calendar in the Sky, what do we mean when we talk about NASA science or Maya science?
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Perhaps the most violent of all the predictions for how the world could end in 2012 is the idea that one or more stars might explode on December 21 and wipe out all life on Earth.
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