The hell in 55 Cancri e
This illustration shows one possible scenario for the hot, rocky exoplanet called 55 Cancri e, which is nearly two times as wide as Earth. New data from NASA’s Spitzer Space Telescope show that the planet has extreme temperature swings from one side to the other – and a possible reason for this might be the presence of lava pools. Its sun-facing side is blistering hot at 2,000 kelvins.
Image credit: NASA / JPL-Caltech