NASA said its Kepler spacecraft has spotted "Earth's bigger, older cousin": the first nearly Earth-size planet to be found in the habitable zone of a star similar to our own.

NASA Kepler spacecraft has spotted "Earth's bigger, older cousin": the first nearly Earth-size planet to be found in the habitable zone of a star similar to our own on Thursday. At this time NASA can't say for sure whether the planet is rocky like ours or has water and air, it's the closest match yet found. "Today, Earth is a little less lonely," Kepler researcher Jon Jenkins said. Watch CNN video for details.