An artists conception of MAVEN in orbit around Mars. NASA photos.

Where did Mar's thicker atmosphere go?

This shot shows water ice clouds at the top that indicate a storm front on the Red Planet

Space scientists looking at the atmosphere of the Red Planet have a bit of a mystery on their hands as the facts would seem to indicate that Mars should have a much more prominent atmosphere. The formation of an atmosphere thick enough for liquid water to flow on the planet's surface wo...