'Astro-comb' helps search for Goldilocks planet

Harvard scientists have unveiled a new laser-measuring device that they say will provide a critical advance in the resolution of current planet-finding techniques, making the discovery of Earth-sized planets possible.

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<p><a href="http://www.physorg.com/news126370110.html">'Astro-comb' helps search for Goldilocks planet</a></p> <p>Harvard scientists have unveiled a new laser-measuring device that they say will provide a critical advance in the resolution of current planet-finding techniques, making the discovery of Earth-sized planets possible.</p>