Amateur astronomers working with professionals in the Planet Hunter project have found a gas giant planet slightly bigger than Neptune in a quadruple star system.
The planet orbits the pair of stars at the core of the system once every 139 days. The other two stars in the system orbit the core pair much farther out. How a planet could be where that one is so far stumps scientists. It's a reminder of how much we still have to learn about the ways of the cosmos.
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