Daily Archives: April 19, 2014

Kepler-186f Comparison Chart
NASA astronomers have discovered the first Earth-sized planet orbiting another star’s habitable zone. The habitable zone is the region of space where a planet orbiting a star could contain liquid water. The Kepler Space Telescope has found hundreds of planets orbiting other stars. Of these, many are orbiting within their sun’s habitable zones. […]

Astronomers Discover First Earth-sized Habitable Zone Planet