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KOMPAS.com – Rain apparently not only happened in Earth alone, but also throughout Solar system.
But rain of planet nothing else similar to that on Earth. The type of material that falls from the sky varies depending on the planet itself.
If on Earth it rains water, then on Mars it rains carbon dioxide. Meanwhile, on Titan there is rain methane, on Venus sulfuric acid, and attracting diamond rain has the potential to occur on Neptune.
However, new research led by Kaitlyn Loftus of Harvard also seems to find similarities between rain on Earth and other planets.
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As quoted from Science Alert, Tuesday (13/4/2021), the researchers said that the similarity lies in the size of the raindrops, whatever the size of the raindrops on Earth.
There are two main reasons why this happens: small raindrops evaporate while large raindrops separate and become smaller.
To test the theory, the researchers looked at the size of the raindrops on Earth-like planets, such as Mars or Venus.
The modeling results show that droplets with a radius less than 1/10 of a millimeter evaporate before reaching the surface. Meanwhile, larger droplets with a radius of more than a few millimeters will split into droplets that are close to the average size.
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Even on a larger planet, there isn’t a dramatic difference in droplet size. Rain on Jupiter or Saturn will be similar in size and shape to Earth or Mars.
Comparison table of rain on several planets
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Thus, the raindrop material does not have a very large impact on the size of the droplets.
For example, on Titan there is methane rain. The study found that the largest methane droplets would only be about twice the size of Earth’s average rain, even though Titan’s gravitational and weather patterns are very different.
It’s not clear why the uniform droplet size exists, but researchers think it has something to do with the density and surface tension of the material.
Also read: The Ocean of Mars Does Not Disappear, Water Hidden Inside the Planet
Understanding how raindrops form on other planets can help exoplanetologists understand the atmospheres of exoplanets that will be subject to research in the near future.
Though it may take a while for someone to actually witness rain on another planet First of all, knowing that it rains there is not too different from that on Earth is a welcome thought.
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