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Earth Sky: Everything You Need to Know: December Solstice 2014
Winter solstice, earliest sunset, latest sunrise. It seems that, in the Northern Hemisphere anyway, these three events should happen on the same day. Read this explanation of the changing of the seasons and learn why the winter solstice...
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Earth Sky: When Did Humans Start Altering Earth?
The ArchaeoGlobe Project assessed knowledge on human land use over the past 10,000 years, through the contributions of more than 200 archaeologists. It concluded that, by 3,000 years ago, most of Earth was already transformed by...