Mars' Clouds Drier Than Believed

Clouds on Mars seem to contain less water than what scientists oringinally believed. The clouds NASA are looking at are made of water ice. It was believed clouds would form at 100 percent relative humidity but after researching this, this statment is no longer true. This will help scientists predict the climate of Mars and this test helps scientists to show Earth and Mars are different is the way clouds form.

http://www.space.com/scienceastronomy/071206-mars-air.html