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Identified "Most Earth-like planet yet" of Kepler

April 18, 2014 Updated at 04:39 BST

Been discovered, the most Earth-like planet, the scientists report in the journal Science.

The rocky planet called Kepler-186F is about the size of Earth.

In about 10% larger scientists say it could also have liquid water - a key ingredient for life - on its surface.

Tim Allman reports.