Well Ive been seeing some images of the Mars surface and I noticed that their sky is not dark with stars like Moon, instead it is orange-ish like [here](https://www.nasa.gov/mission_pages/msl/images/index.html)
In: Physics
The sky on earth is only dark with stars and the moon at night, when the sun isn’t seen.
What you’re seeing is Mars during the day.
Mars has a less dense atmosphere than Earth, so as a result the sky looks like it’s a different color. True color images of mars will show a sky that has less *diffraction* than Earth’s sky, because earth’s sky is more dense.
The more dense a sky, the more diffraction. The less dense, the less diffraction.
It’s sort of like how the sky looks different under 1 foot of water than 10 feet of water!
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