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super earth

Astronomers discover a cold super-Earth in our neighbourhood!

An international group of astronomers, involving the Max Planck Institute for Astronomy (MPIA) in Heidelberg, has succeeded in detecting a planet around Barnard's star, which is only six light years away. The planet has just over three times the mass of Earth and is slightly colder than Saturn. The discovery was made by measuring the periodic change in the radial velocity of the parent star. Barnard's star (GJ 699) is the single star closest to Earth, located at a distance of about 6 light years. When viewed from…