Astronomers identify volcano-covered planet that could have water on its surface

Astronomers have found a planet they believe is blanketed by active volcanoes. In a study published Tuesday in the journal Nature , a multi-national team of scientists said they discovered an Earth-sized exoplanet they believe may have water on part of its surface. The boringly named LP 791-18 d (sadly, no one thought to call it Mustafar ) is located about 90 light-years from Earth in the Crater constellation. LP 791-18 d orbits a red dwarf it is tidally locked to, meaning the planet doesn't hav...