Astronomers Discover an Earth-Size World Orbiting a Sun-Like Star in the ‘Habitable Zone.’ But Is It Earth 2.0?

Until today, for all we knew as humans, Earth was the only rocky planet in the universe orbiting a reasonably friendly star within a zone that was neither too close nor too far for life to thrive.

Now we know there’s a good chance that the home planet is not unique.

Note the caveat. Please keep reading to find out why it’s necessary….

Astronomers with NASA’s Kepler Mission announced today that they’ve found the first near-Earth-size planet in the “habitable zone” orbiting a Sun-li

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