The two planets orbiting a star 1,110 light-years away are the biggest exoplanets ever found with a density lower than cotton candy, and may be mostly made of hydrogen and helium. Astronomers have discovered a pair of giant planets lighter than cotton candy, or "super-puffs," the size of Jupiter orbiting a star more than 1,000 light-years away. The featherweight duo are the biggest exoplanets ever found with such a low density... [1324 chars]
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