What planet is most like Earth? Reseachers have identified several exoplanets similar to our planet, but none that are an ...

Data mining the first two years of results from NASA’s Kepler planet-finding probe, using a statistical technique based on the discovery that multi-planet systems are more common than once thought, ...

— -- Astronomers on Monday reported the discovery of an Earth-like planet outside the solar system whose size and distance from its own star put it in the "habitable" zone and make for a surface ...