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Astronomers have discovered exoplanet nearest to the Earth, the solar system, just four light years, according to Le Temps, citing an article in the journal Astronomy & Astrophysics, published with the participation of scientists of the University of Geneva.

Around the star Proxima Centauri planet similar to Earth. It should be water in liquid form. Proxima planet b has a mass slightly larger than the earth, and it is located in the habitable zone. The rotation period of the earth it is 11.2 days.

The discovery was confirmed by the most perfect to date, Swiss Espresso spectrograph, installed in Chile.