The space mission KEPLER, launched in March 2009 to investigate exoplanets, has just delivered its first results on the vibrations of stars. Several international teams of scientists, including members of the Astrophysics Division (CEA-Irfu) have shown, using this first data, that starquakes not only make it possible to probe the interior of stars but they also allow determination of their age and tell us whether or not the stars belong to a cluster.
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