Jul 23, 2015 – Space – File – NASA’s exoplanet-hunting Kepler spacecraft has spotted another Earth-like world. The space agency today announced the discovery of Kepler-452b, the smallest planet we’ve found yet orbiting inside a star’s habitable zone, the places around a sun where it’s warm enough for liquid surface water. NASA researchers are dubbing Kepler-452b as Earth 2.0. Pictured: Aug. 26, 2010 – An undated photo shows NASA’s Kepler spacecraft has discovered the first confirmed planetary system with more than one planet crossing in front of, or transiting, the same star. The planet-hunting Kepler space telescope has.found a new planetary system orbiting a distant star that could include a planet nearly the same size as Earth, NASA scientists said, 26 August 2010. Lapresse Only italyNasa: scoperto pianeta gemello della Terra.