A team of astronomers has discovered a new rocky, Earth-sized exoplanet orbiting a star approximately 39 light-years away. In this artist’s conception GJ 1132b circles a red dwarf star. Image credit: Dana Berry. The newfound world, named GJ 1132b, orbits a red dwarf star known as GJ 1132 (Gliese 1132), which is only 1/5 the size of the Sun. The star is also cooler and much fainter than our Sun, emitting just 1/200th as much light. GJ 1132b, also...