NASA discovers 715 new planets; some appear capable of supporting life

The Kepler telescope spotted 715 planets outside our solar system, orbiting 305 stars. Scientists verified their existence using a new statistical technique. This is the biggest single discovery of planets ever made, CNN reports.

Four of the planets are in the "habitable zone," which NASA says means they could potentially support life. And 95 percent of the planets are reportedly smaller than Neptune, which is four times the size of earth.

NASA expects the next batch of data will reveal even more planets.

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