Erupting volcanoes may cause exoplanet’s temperature extremes

Spitzer telescope observes fluctuations of more than 1,000 degrees

Illustration of exoplanet 55 Cancri e

The partially molten surface of 55 Cancri e (left, illustrated) might periodically be blanketed by volcanic dust (right), which could explain observed temperature swings of over 1,000 degrees Celsius.

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