Water on Mars

Mars is a cold desert planet with no liquid water on its surface, but discoveries announced in 2000 by Malin Space Science Systems (MSSS) using cameras aboard Mars Global Surveyor and discoveries by Mars Odyssey Orbiter researchers in 2002 showed the presence of water ice just below ground level. In 2005, while re-imaging certain areas MSSS discovered this recent flow: This 2005 reconstructed image from the European Space Agency's (ESA) Mars Express spacecraft shows vertical cliffs nearly 2 kilometers high bordering a volcanic caldera near the north pole of Mars. Also visible are reddish areas of rock and sand, white areas of ice, and dark areas that are probably volcanic ash. No, the greenish tinge isn't shrubbery. The MARSIS (Mars Advanced Radar for Subsurface and Ionospheric Sounding) radar on the Mars Express spacecraft studied the structure of the layered deposits of this region to a depth of 3.7 km. In March of this year JPL reported in Science magazine that the d