Abstract <p>The safety of space flights depends on many different factors. One of these factors is radiation, both from the Sun and from high-intensity flows occurring in our galaxy and beyond. Flows of high-energy charged particles from the Sun occur especially intensively during periods of high solar activity. Another source of danger is radiation that occurs outside the solar system. This is a more distant, but real cosmic danger in the form of galactic cosmic rays, which are formed by atomic cores and elementary particles with very high energy. This is due to the fact that there are objects in deep space that are much more powerful than our star. Such super-powerful energy flows occur in quasars, black holes, protostars, and supernova explosions. The energy flows that occur during accretion to a black hole are relativistic jets that spread over vast distances and can even go beyond our galaxy. Due to the high energy, these energy flows are one of the main sources of radiation hazards in space; they put the radiation dose loads on astronauts in near-Earth and interplanetary orbits. When such flows enter semiconductor chips, this radiation causes ionization and energy release, which can lead to electronics and equipment element failures. Non-relativistic jets are formed during the formation of new star systems (YSO, Young Star Object). These processes can have a significant impact on the safety of space flights. In this paper, the formation processes of non-relativistic jets that occur during a protostellar disk accretion on YSO are considered.</p>