The sailing ship "Tara" arrived Saturday in France, returning from a long scientific voyage during which it toured 70,000 km in several regions of the world, from which it brought thousands of samples of marine microorganisms, the analysis of which is supposed to allow a better understanding of the work of marine plankton."There is no specific discovery" announced by the mission, said Romain Troblet, director of the "Tara Foundation", during a press conference in Groy (western France) at the end of the two-year trip, entitled "Microbiome Mission". During its voyage from Chile to Africa, passing through the Amazon and Antarctica, the laboratory sailing ship took about 25,000 samples of marine microorganisms (viruses, bacteria, etc.). "In 18 months to two years, we will start making the first discoveries" after analyzing the samples, Troblet added.