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Scientists at the University of Durham in England proved that billions of years ago, an unknown planet, twice as large as the Earth, collided with Uranus . This explains why the axis of Uranus was "lateral", unlike all other planets in the solar system.
The celestial body may be the ninth sought-after planet. This was reported in a press release published on Phys.org
. The hypothesis of the collision of Uranus with a large planetsimal was proposed several decades ago, but not all researchers agree with this.
The results of the simulation showed that the collision with a large object and the final modification of the axis of rotation took place in a few hours. However, astronomers consider that a collision with several smaller celestial bodies is less likely. According to scientists, the planet that allegedly struck Uranus may still be present in the solar system and would be far beyond the orbit of Pluto, which means that it would be the ninth planet astronomers have been searching for ever since. several years.
The planetary catastrophe occurred 3 or 4 billion years ago, probably before the formation of Uranus satellites. Next, the ice giant was a protoplanet with a disc of gas and dust, from which its moons appeared. The inclination of the axis of Uranus influenced the inclination of the satellites' rotation orbits and the orientation of their own axes. The collision has also resulted in the formation of an outer layer that retains heat inside the planet (the gaseous giant's tropopause temperature is 216 degrees Celsius).
A clbad of planets is called ice giant. ammonia, methane and hydrogen sulphide in the form of supercritical liquids. In the solar system, they are represented by Uranus and Neptune. Hydrogen and helium correspond to 20% of the mbad, which distinguishes them from gaseous giants such as Jupiter and Saturn (the proportion of hydrogen and helium represents 80%).
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