Different chemical composition, structure on the exoplanets have similar behaviour to earth in Rain. Rainwater in exoplanets(planets around other stars rather than the Sun) also drops like earth.
A recent study by the scientist, Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) found that the raindrops keep falling on exoplanets. It says the similarity of raindrops in exoplanets useful to identify the habitable possibility in those planets. Also, this study helps to determine the ancient climate conditions in Mars by analysing its Rain.
The major components to identify the behaviour of the rainwater are,
- Drop shape
- Falling speed
- Evaporation speed
From these observations, scientists identified that most of the planets have a low percentage of rainwater can reach the surface.
Katelyn Loftus, a graduate student from the Department of Earth and planetary sciences, said, “The lifecycle of clouds is essential when we think about planet habitability. But clouds and precipitation are really complicated and too complex to model completely. We’re looking for simpler ways to understand how clouds evolve, and a first step is whether cloud droplets evaporate in the atmosphere or make it to the surface as Rain.”
Robin Wordsworth, Associate Professor of Environmental Science and Engineering at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS), said, “The humble raindrop is a vital component of the precipitation cycle for all planets. If we understand how individual raindrops behave, we can better represent rainfall in complex climate models.”
Loftus said, “We can use this behaviour to guide us as we model cloud cycles on exoplanets.”
Wordsworth said, “The insights we gain from thinking about raindrops and clouds in diverse environments are key to understanding exoplanet habitability. In the long term, they can also help us gain a deeper understanding of the climate of Earth itself.”