Found at remote sites around the world are gigantic art installations meant to blur the lines between landscape and sculpture. Take a tour of some of the planet’s most popular Earth art.

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Senator Lea Webb is asking student artists to participate in an Earth Day celebration. Webb is seeking submissions for her ...

A distinctive blue and green image of Earth reveals our planet's most remarkable features. At 4.54 billion years old, our home world is a venerable object. But it was only with the arrival of the ...