Scientists from Wilhelm University of Westphalia (Germany), California Institute of Technology, Livermore National Laboratory (USA) and other scientific institutions have announced that the inner planets of the solar system were formed from planetesimals, not dust particles. According to researchers, if not for Jupiter, the Earth could be larger, according to Naked science.

There are two hypotheses about how the Earth and other rocky planets of our system appeared.. According to one of them, this happened as a result of a collision of planetesimals in the inner solar system. The second suggests that the Earth and Mars were formed for a very long time, from tiny dust particles that flew from the outer regions of the system..

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In a new study, scientists analyzed terrestrial rocks, as well as 17 Martian meteorites that fell on our planet at different times.. They also studied the composition of other meteorites that came to Earth from both the outer and inner solar systems..

Scientists estimated the ratio of isotopes of titanium, zircon and molybdenum in the samples and found that the rocky rocks of the Earth and Mars in this composition are more consistent with meteorites of the inner, rather than the outer solar system.. It turned out that only 4% of the composition of these two planets have an "

That is, the researchers proved the veracity of the first hypothesis. Scientists have also proven the huge influence of Jupiter on the rest of the planets.. In other systems, in the absence of such a gas giant, rocky planets can form from dust..

In the solar system, this process is interfered with by Jupiter, which, with its gravity, changes the orbits of dust particles. If it weren't for him, over time they would have moved closer to the Sun and blinded into planets, for example, super-earths.

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