Venus's Atmosphere Is so Violent It Makes the Planet Spin Faster


An global team of researchers figured out why changing the speed of rotation of Venus. According to the previous estimations, a revolution of the Venus takes around two hundred forty-three Earth days with a varying rate of rotation. Their observations suggest that some unknown phenomenon continues to inhibit the planet and that the length of a day on it increased by 6-7 minutes every Venus "day".

Venus, despite the almost worldly dimensions and chemical composition, is among one of the most unusual planets in the Solar system.

For future studies, Navarro told Cosmos that he hopes to find out why Venus' atmosphere "super-rotates", or rotates faster than the planet actually does, thus resulting in conditions favorable to the creation of the aforementioned gravity waves.

A day on Venus lasts about 243 earth days, however, the rotation speed of the atmosphere at 60 times the speed of planet rotation around its axis.

Venus might seem rather Earthly, given its similar size and presence of a thick, carbon dioxide-filled atmosphere. The latest study revealed that this formation is, in fact, a "gravity wave" triggered by the connection between the speedy winds and the Venusian mountains.

The Japan Aerospace Exploration Agency has a spacecraft orbiting Venus called Akatsuki.

This insane motion results in winds of up to 400 kilometres per hour (around 250 miles per hour). It's already made some important observations, like an enormous atmospheric anomaly, a bow-like structure in the planet's clouds that appears not to move despite the fast winds below. According to scientists, it represents an extremely stable gravitational wave, formed by the collision of wind with the mountain chains of the planet.

These constant and intense hurricanes affect the peaks on the surface of Venus that leads to the appearance in the atmosphere of stable structures and even affect the rotation of the planet. In their model, the researchers took into account all known physical phenomena, which are observed in the planet's atmosphere, including convection and radiative transfer. In turn, this information could be used to help scientists learn about other weather-related issues on Earth. However, that doesn't change the length of our days that much, as this figure typically fluctuates by just a few milliseconds.

"This work is very interesting", planetary scientist Tetsuya Fukuhara of Rikkyo University in Tokyo, one of the researchers who first uncovered the atmosphere wave, told Science News.