Microbes live and multiply everywhere, in almost any environment. The microcosm is extremely diverse. There are bacteria-"giants", reaching a length of two to three millimeters, and there are the smallest viruses, which are measured in fractions of microns. The variety of their forms is very great.
The instruments noted the presence of microbes in extremely rarefied layers of the atmosphere at heights of several tens of kilometers. They were found in the ocean at a depth of 10, 000 meters. There are bacteria that tolerate the boiling point of water for twenty hours. Microorganisms live in the ice of the Arctic and some of them do not perish even in an atmosphere of liquid helium, the temperature of which is close to absolute zero (273, 16 degrees below our usual zero degrees Celsius)