Close window Published online: 25 January 2006; | doi:10.1038/news060123-5 Found: one Earth-like planetAstronomers use gravity lensing to spot homely planets.Mark Peplow How to spot a planet: watch for wiggles in the light coming from a far distant star as it curves around another sun.© ESO Astronomers say they have found the most Earth-like planet yet outside our Solar System. At just 5.5 times the mass of Earth it is one of the smallest extrasolar planets ever found, and orbits its star at a distance comparable to that of habitable worlds. Similarly sized extrasolar planets have been found before. But...