Rallying back from a mechanical failure, the telescope helps confirm the existence of an exoplanet 2.5 times the diameter of Planet Earth.
The planets in the habitable zone orbiting a star may be suitable for liquid water and supporting life.
You may think this planet is overpopulated or you may just be sick of the partisan politics. In either case, HD 40307g is an attractive getaway.
Among eight new Kepler planets found are the two most Earth-like to date, with possible conditions for the propagation of life.
Venus exploration has been deemed off-limits due to its inhospitable climate -- but NASA believes Cloud City may be the answer.
A dwarf planet out beyond Pluto has been found orbiting our sun — and there may be another planet 10 times the size of Earth.
While the Kepler planet-hunting spacecraft is offline, astronomers continue parsing its data and scanning the sky not just for evidence of habitable planets, but for advanced civilizations.
Space and science fiction illustrator Ron Miller has created magnificent images of how Earth's skies would appear if our planet had giant rings.
The question "Is anybody out there?" grows more tantalizing with the discovery of each new far-off planet. CBS Sunday Morning talks to scientists searching for clues.
The agency's Kepler space telescope locates three planets -- in two new planetary systems -- that are the right distance from their suns to make them potentially life-supporting.