A cold, heavy "super-Earth' has been found orbiting a distant star, using a method that holds promise for detecting faraway planets that closely resemble our own, astronomers said. The planet weighs 13 times as much as Earth and is orbiting a star about 9,000 lightyears away. But instead of circling close to its star, as Earth does, this "super-Earth' is about as distant from its star as Jupiter and Saturn are from the Sun.