27 Feb '13, 6pm

Saturn's strange north pole is a giant hexagon

Saturn's strange north pole is a giant hexagon

We've learned a lot about Earth's atmosphere and climate by studying other planets. As the American Institute of Physics writes: "In the 1960s and 1970s, observations of Mars and Venus showed that planets that seemed much like the Earth could have frightfully different atmospheres. The greenhouse effect had made Venus a furnace, while lack of atmosphere had locked Mars in a deep freeze. This was visible evidence that climate can be delicately balanced, so that a planet's atmosphere could flip from a livable state to a deadly one." The photo above was taken over Saturn's north pole by NASA's Cassini orbiter on November 27, 2012 from a distance of 376,171 kilometers (233,742 miles). It shown a very interesting and intriguing atmospheric phenomenon that we haven't seen anywhere else.

Full article: http://www.treehugger.com/slideshows/natural-sciences/sat...

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