Scientists offer hope for life on other planets
Scientists announced Thursday the discovery of three planets that could be habitable worlds outside our own solar system.
NASA's Kepler satellite discovered the trio, TASS reports.
Two of the planets - Kepler-62e and Kepler-62f - are described in a study released Thursday in the Science journal. They are part of a five-planet system in which the candidates for life are the farthest from the host star.
The host star - the equivalent of Earth's sun - is Kepler-62.
A third planet - one that is potentially habitable but not included in the study - is Kepler-69c.
These are the smallest planets ever found in the so-called "habitable zone," an area near a star in which a planet can theoretically hold liquid water.