Did you know our solar system might have had an extra planet? Scientists believe a mysterious ninth planet once existed but got kicked out long ago! This "lost" planet could have been tossed into deep ...

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Emily Simpson has loved space since she was a 10-year-old kid celebrating her birthday at a planetarium. Now a recent Florida Tech graduate, she leaves with not only a dual degree in planetary science ...

PARIS (AFP) -- Astronomers reported they had found three enticing Neptune-sized planets orbiting a distant star, in a discovery that marks a further step towards the goal of finding another Earth.