Astronomers discover Earth-like planet

By Nicky Phillips
Updated April 22 2014 - 1:18pm, first published 12:06pm
Exoplanet Kepler-186f is roughly the same size as Earth and orbits its star within the habitable zone.
Exoplanet Kepler-186f is roughly the same size as Earth and orbits its star within the habitable zone.
An artist's impression of the Earth-sized planet Kepler-186f. Photo: NASA
An artist's impression of the Earth-sized planet Kepler-186f. Photo: NASA

For decades, astronomers have scanned the sky looking for planets like our own, rocky worlds that orbit a star at just the right distance to harbour liquid water, and possibly, life.

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