Only two planets are known to get liquid rain at the surface, Earth and Titan (one of Saturn’s moons). Earth’s rain is water, Titan’s is liquid methane.
The rain on the rest of the planets discovered so far evaporates before reaching the planet’s surface. Which may be a good thing since the “rain” is actually solid rock (COROT 7b), diamonds (Neptune, Saturn, and Jupiter), or Sulfuric Acid (Venus). Makes a walk in the rain on earth rather enjoyable, don’t you think?
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