Four species of Bacteria are identified in the international space station out of which three of them previously unknown to science. This creates a question of how they got to the space station and how they survived.Their discovery may be the starting of future efforts to cultivate crops during long spaceflight missions since related species are known to promote the growth of plants and help them fight off pathogens.
Studies have found that certain resilient strains of could survive the harsh conditions of space, including dried pellets of Deinococcus. This type of Bacteria is listed in the Guinness World Records as the world’s toughest which survived on the space station’s surface for three years.They were deliberately placed there to test the “panspermia” theory, that life exists throughout the universe and maybe transported between planets by space dust, asteroids, comets, or even contaminated spacecraft.
All of them are rod-shaped Bacteria belonging to the Methanobacteriaceae family which are found in soil and fresh water, where they help to promote plant growth and defend against pathogens.Christine Moissl-Eichinger, a microbiologist at the Medical University of Graz, Austria, said that all microbes in the space station are from earth.
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