Rings over Guatemala
Actually, for a very brief period Earth may have once had rings. They could have been the result of an impact, billions of years ago, between Earth and a Mars-sized protoplanet called Theia. Debris from the collision coalesced into the moon, according to the giant impact hypothesis.
This illustration shows a view from Earth if our planet had rings that shared the same proportion as Saturn's. From Guatemala, the rings spread across the sky over an ancient temple. Reflected light from Earth, or earthlight, that illuminates the dark side of the moon is much brighter than in reality because of sunlight being reflected from the rings.
May 22, 2013 6:20 AM PDT
Photo by: Ron Miller
| Caption by: Tim Hornyak
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