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I was speaking with a friend about this today, I don't see a thread on it.
http://www.msnbc.msn.com/id/32391095/ns/technology_and_science-space/
Newfound planet orbits backward
Planets orbit stars in the same direction that the stars rotate. They all do. Except one.
A newfound planet orbits the wrong way, backward compared to the rotation of its host star. Its discoverers think a near-collision may have created the retrograde orbit, as it is called.
The star and its planet, WASP-17, are about 1,000 light-years away. The setup was found by the UK's Wide Area Search for Planets (WASP) project in collaboration with Geneva Observatory.
http://www.msnbc.msn.com/id/32391095/ns/technology_and_science-space/