A new twin? Scientists announce most Earth-like world yet found

Dailymail: An alien planet spotted by Nasa's Kepler space telescope is the best candidate yet for an Earth-like world beyond our solar system, Scientists claim.
The planet - whose existence is yet to be positively confirmed. has a radius that is just 1.5 times that of our own and orbits in the 'habitable zone' of a star similar to our own Sun.

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