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Published online 13 June 2005 | Nature | doi:10.1038/news050613-2
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Rocky planet found outside Solar System
Extrasolar discovery is like Earth's 'bigger cousin'.
The hunt for worlds outside our Solar System has found its smallest planet yet: it weighs in at just seven-and-a-half times the size of the Earth.
Astronomers have already found more than 150 extrasolar planets, also known as exoplanets.
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