Planet Found in Nearest Star System to Earth

European astronomers have discovered a planet with about the mass of the Earth orbiting a star in the Alpha Centauri system — the nearest to Earth. It is also the lightest exoplanet ever discovered around a star like the Sun. The planet was detected using the HARPS instrument on the 3.6-metre telescope at ESO’s La Silla Observatory in Chile.

For more information: http://www.eso.org/public/news/eso1241/

Artist impression of alpha Cen Bb (©ESO)

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