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International Poker Champion
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Former CIA Clandestine Operative
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Chris Hadfield
Retired Canadian Astronaut & Author
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  • A new study suggests that the moons of gas-giant exoplanets may break away into their own orbits, called "ploonets."
  • Planet + moon = ploonet.
  • As the gas giants move inward toward their suns, the orbits of their moons are often disrupted, according to new computer models.
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