Based on the consideration of the formation of the solar system on the basis of the Standard Model in comparison with the model of the birth of the Universe with a minimum initial entropy, it is shown that taking into account the expansion of the Universe does not allow the formation of the Solar System in the Standard Model, but allows us to adequately describe the formation of the solar system in the Universe with the initial minimum entropy. In the latter model, both the mass of the cosmic body and the distance from the planet to the sun increase in proportion to time. This fact ensures that velocity of motion of the planet in its constantly moving away from the Sun orbit is constant over time. The new model assumes that the Oort cloud was first born, then the Kuiper belt and only after that there were conditions of resonance for the liberation from the periphery of the solar disk of the embryo of the future planet Neptune. Then according to the same scenario, the rest of the planets were born. The proposed model gives a correct estimate of the time of the emergence of multicellular organisms on Earth.