Astronomers have discovered an exoplanet that is believed to be blanketed in volcanoes. Exoplanet LP 791-18 d is suspected to have volcano eruptions as frequent as Jupiter’s moon lo, which is the most volcanically active body in our solar system.

LP 791-18 d was detected and studied utilizing NASA’s Transiting Exoplanet Survey Satellite,

Source: Hot Hardware – NASA Discovers Earth-Sized Planet Blanketed In Volcanoes