This image of Martian clouds illustrates the fact that they are found mostly in the equatorial region.
Click on image for full size
Image from: Hubble
Clouds on Mars
On Earth, clouds cover about 50% of the sky. On Mars, clouds only cover 30% of the sky at any time. The picture shows that most of the clouds of Mars are found near the equator of Mars. This is unusual. On most other planets (Earth, Venus, Jupiter) clouds are found around the globe.
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