If Mars looks red when viewed from Earth, does Earth appear blue when viewed from the surface of Mars?

Does the Martian atmosphere filter out any UV radiation?

Where does the methane on Mars come from?

Mars frequently has violent dust storms. What causes these storms to happen, and what effects do they have on the atmosphere?

The Martian atmosphere is only 1/150th ours on Earth. If you could expose your bare body to the atmosphere on Mars, would you hear, smell and feel the wind?

If we could develop a way to put some kind of photo-synthesizing life-form on Mars (plants or microbes), would the atmosphere eventually be able to support life due to the gases used and expelled by these life-forms?

The Mars atmosphere is thin and is continually being stripped away. Will Mars at one point lose its current atmosphere ? If so, in what period of time ? If not, is the atmosphere of Mars replenished (and how) ?

Is the martian atmosphere thick enough to attempt some sort of blimp or balloon probe that could be deployed from a lander.

Does Mars lost its atmosphere for sure? If so, how does it keep its 2 moons in its orbit?

Did Mars have vast oceans and could there have been large quanities of lime which caused the carbon dioxide atmosphere to increase due to the planet heating up?