An international research, with the participation of the Instituto de Astrofísica de Canarias (IAC), has discovered an Earth-size exoplanet that may be carpeted with volcanoes. Called LP 791-18 d, the planet could undergo volcanic outbursts as often as Jupiter’s moon Io, the most volcanically active body in our solar system. The study is published in the scientific journal Nature. LP 791-18 d orbits a small red dwarf star about 90 light-years away in the southern constellation Crater. The team estimates it’s only slightly larger and more massive than Earth. Astronomers already knew about two

NASA's space telescope has produced a molecular and chemical portrait of the atmospheric constituents of exoplanet WASP-39 b, a Saturn-sized behemoth that orbit a star some 700 light-years away. The observations provide a full menu of atoms and molecules, and even signs of active chemistry and clouds. The suit of discoveries is detailed in a set of five scientific papers produced by an international collaboration involving research staff from the Instituto de Astrofísica de Canarias (IAC). WASP-39 b is a planet unlike any in our solar system. It is a so-called "hot Saturn" –a planet about as