Kepler-70b is an exoplanet in the Kepler 70 system, and it has an average temperature hotter than the surface of the Sun. Once a Jupiter-sized planet, Kepler-70b endured a journey through its now-dead star, a trip that typically obliterates planets. However, this one emerged as a scorched, Freddy Krueger-like world, now smaller than Earth. With temperatures soaring to about 12,000 degrees F (6,800 C), it ranks among the hottest planets discovered. The planet is gradually evaporating and is expected to eventually vanish.