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A leap forward in the hunt for Earth-like planets

A new technique for studying distant worlds looks set to help scientists narrow the search. Belinda Smith reports.

or exoplanet.  This artist's rendering shows a gas-giant exoplanet transiting across the face of its star. Infrared analysis by NASA's Spitzer Space Telescope of this type of system provided the breakthrough.  The planet
or exoplanet. This artist's rendering shows a gas-giant exoplanet transiting across the face of its star. Infrared analysis by NASA's Spitzer Space Telescope of this type of system provided the breakthrough. The planet
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