The hottest known exoplanet, which is said to be hotter in places than most known stars, has been spotted 650 light-years from Earth.
With a day-side temperature peaking at 4,600 Kelvin (around 4,327 degrees Celsius), the newly-discovered exoplanet, called KELT-9b, is hotter than most stars and only 1,200 Kelvin cooler than our own Sun. The previous record holder, Wasp-12b, was found in 2008 and reaches temperatures of a relatively cool 2,500 K (2,200°C).
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Abigail Beall 