
Volcanoes may carpet surface of newfound Earth-size exoplanet
A newfound exoplanet that lies 90 light-years from Earth may be studded with active volcanoes, whose emissions could sustain an atmosphere.
An alien planet that orbits a star other than our sun is referred to as an "exoplanet." Learn more about the types of alien planets, including exoplanets and extrasolar planets, and get the latest news.