NASA discovers 20 possible Earth-like exoplanets
A new analysis of data from NASA's Kepler Space Telescope has revealed 20 exoplanet candidates, which may be habitable, according to astronomers. The planets orbit Sun-like stars, with the fastest orbit taking 18 Earth days to be completed and the slowest taking 395 days. The discovery would be confirmed by ground-based observatories or the Hubble Space Telescope, said Kepler scientists.