This Unusual Exoplanet Has a Rocky Surface and an Atmosphere

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This Unusual Exoplanet Has a Rocky Surface and an Atmosphere

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Astronomers, at last, have nailed down a big step forward: a far away, brutally hot super-Earth seems to have this thick, air-like wrap over what is essentially rocky ground. They point to 55 Cancri e, and it gives a pretty unusual view into how rocky exoplanets keep volatile atmospheres even while their star is blasting them with intense radiation.