So WASP-17 is a planet that orbits a star in the opposite direction of any other planet. It is quite a mystery and is one of the first planet found that does this. Not much is known about this planet other then the direction it goes. Maybe aliens are behind this phenomenon.
The star and its planet, WASP-17, are about 1,000 light-years away. WASP-17 likely had a close encounter with a larger planet, and the gravitational interaction acted like a slingshot to put WASP-17 on its odd course, the astronomers figure.
Via: YHN
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