?Why does Venus and Uranus rotate unlike the rest of the planets
The answer to this question is one of the mysteries that has puzzled scientists for many years, and so far there is no 100% correct theory that explains why this happens, which asserts that we still only know a very small part of what is out there outside this unique blue ball! What made the planets Venus and Uranus, which are separated by billions of kilometers, singularly turn around on their axes in a direction opposite to the rest of the planets in the midst of a universe that walks according to specific laws that do not
! deviate from them
There are two types of rotational movements that emanate from any planet, the first is its rotation around the parent star and in this case it is the sun, and here all the planets without exception revolve in the same direction around the sun, which is counterclockwise, i.e. from west to east.
As for the second type, it is the planet’s rotation around itself or its axis, and this is what we are talking about today. All the planets rotate around their axes counterclockwise, while Uranus and Venus rotate in the opposite direction, that is, in a clockwise direction. If you live on either of them, you will find in the morning that the sun Shining from the West, not the East!
And things are getting more and more confusing
What increases the confusion is that the two planets Venus and Uranus are far from each other in terms of the characteristics of each. Because Uranus is a huge planet relative to Venus, it is about four times larger than it, so what is the secret that brought these two winters together to be the exception among the rest of the planets!
Comparison of the rotation direction of Uranus, Venus and the Sun (from right to left)
When a planet rotates on its axis in a direction opposite to the rotation of the parent star and opposite to the rest of the planets - yes the sun also rotates on its axis - this movement is called retrograde rotation and there are several theories that have tried to explain its occurrence.
A catastrophic collision may be the cause of retrograde rotation
It was assumed that all the planets of the solar system rotate in the same direction, so they are all under the same conditions from a giant gas cloud revolving in the vast space, and one of the most popular theories over the years suggests that the two planets were originally both rotating in the natural counterclockwise direction such as The rest of the planets, but it happened that each of them collided with a huge body about the size of the Earth, perhaps one of the other planets, and the collision was so huge that it affected and reversed the direction of rotation of the two planets.
Over the years, and with the advancement of means of observing planets and celestial bodies, scientists began to follow each planet separately to try to find the real reason behind this phenomenon, and they started with Venus, as it is the closest neighbor to us.
? Why does Venus rotate on its axis clockwise
Venus's relatively close location made it easier to study its conditions better than Uranus, as Venus is only 175 million km away from us, while Uranus is more than 3 billion km away from us.
Scientists believe that Venus may have started spinning around its axis in a counterclockwise direction, like the rest of the planets. Then something happened that made it begin to gradually slow down its speed until it became almost stationary, and then reversed the direction of its rotation as it is now.
And this may actually explain its very little speed in rotation, so that Venus makes a complete revolution around its axis, it takes 243 Earth days, while it takes only 225 Earth days to revolve around the sun, so that the day becomes longer than the year, and that is one of the strange wonders of Venus!
The dense envelope of Venus
Scientists believe that the dense atmosphere of Venus may have a hand in this matter, as it is saturated with carbon dioxide, which amounts to 96%, in addition to clouds loaded with burning sulfuric acid, which makes the density of the atmosphere very high enough to affect the direction of rotation. .
This is because that dense envelope is subject to the strong attractive forces of the sun as well as to the forces of attraction from other planets such as the Earth, and this leads to the occurrence of tidal waves similar to what happens here for water surfaces due to the force of attraction of the moon. The planet is more or less spinning in the opposite direction.
! The flower may be rotating in the normal direction, but it is upside down
Well, this is one of the strangest theories supported by a large team as well. It explains the change of direction of rotation of the dense atmosphere as well, but this time due to its intense friction with the planet's layers of the core and mantle during the rotation, which in turn gradually caused the generation of torque sufficient to turn the planet at an angle of approximately 180 degrees! Thus, it rotates in the opposite direction from before.
Indeed, you will find that some sources in support of this theory indicate that the tilt angle of Venus is 177 degrees, while others assert that the planet tilts at an angle of only 3 degrees.
? Why does Uranus rotate clockwise
As for Uranus, it is not only strange that it rotates on its axis in a clockwise direction, but that it also rotates when it is tilted at an angle of 98 degrees! That is, its north and south poles are approximately at the level of the equator relative to the other planets, which increases the mystery. If you want to imagine its tilt more, compare it to the degree of inclination of the Earth's axis, which is approximately 23.5 degrees, or another planet such as Mars, which is tilted at an angle of only 25 degrees.
Due to its great distance from us, we still do not have enough evidence to explain the causes of these phenomena. The only spacecraft that passed through the planet Uranus was Voyager 2 in 1986, but some simulations that were made in 2011 suggest that a group of successive small collisions occurred to the planet and not a single collision It's huge, and those collisions made it tilt at that angle and spin against its normal direction.
The theory of small collisions may be closer to the truth, because 18 of the 27 moons of Uranus actually orbit around it at the same angle and the rest rotate irregularly, which probably wouldn't have happened if only one big collision had happened then.
Scientists are currently calling on NASA to start planning to send a probe there to reveal these secrets, and it is likely that it will be launched in the early 2030s if they really start planning now, but if the launch happens at this time, do not rush the answer as we will have to wait a long time before we know any Anyway, it takes 15
!years to get there
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