The newest-discovered exoplanet doesn't act like any planet you've ever heard of. The bizarre find is 650 light-years from Earth, in the constellation Cygnus.
KELT-9b is a giant planet nearly twice the size of Jupiter, with a dayside temperature hotter than that of most stars and thousands of degrees warmer than any known exoplanet, according to a study published Monday in the journal Nature.
It's so close to its host star, KELT-9, that it orbits every 1½ days, unlike the year it takes Earth to orbit our sun. This proximity isn't exactly kind to it. The temperature and size would make the star appear light blue to our eyes.
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