Illustration of exoplanet 55 Cancri e, a rocky planet almost twice the diameter of Earth, orbiting only 0.015 astronomical units from its sun-like star. Due to its narrow orbit, the planet is extremely hot, with daily temperatures reaching 4,400 degrees Fahrenheit (about 2,400 degrees Celsius). Credit: NASA, ESA, CSA, Dani Player (STScI)
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