Hypothesis about the extraterrestrial origin of life on Earthreceived another confirmation. Long-term disputes about the possible arrival of living organisms from space forced scientists to start testing in practice the survival of bacteria in deep space. As a result, it turned out that life on Earth could get through open interplanetary space. However, the radius of "delivery" of living organisms turned out to be limited and cannot be more than the distance from Earth to Mars.
During the experiment carried out on the externalside of the International Space Station, the survival of the bacteria Deinococcus was tested. For about three years, the bacteria were under the influence of low gravity, tremendous temperature changes, vacuum and ultraviolet radiation.
According to the results of the experiment, scientists concludedthat the lifetime of bacteria in such conditions can reach 3-8 years, and during the "flight" inside the ISS, Deinococcus could survive from 15 to 45 years. Even bacteria damaged by cosmic radiation were able to restore their genome in the future.
Thus, the possibility of moving living organisms in open space in the form of an accumulation of cells (aggregates) has been experimentally proved, and life can be transmitted from planet to planet.