SS: we can see that the surface of mars is actually covered in volcanic ash and may be ice left under the ancient ash .. looking at olympus mons volcano that is the size of arizona and the three volcanoes near it looks like the crashed spaceship looking object “the mound” is covered under ancient volcanic ash as is most of the entire planet of mars.

SS: what we are seeing on mars is not the actual surface of mars. we can’t see what is under the ancient ash so there is possibility that if there was any water that did not burn away it may be frozen under the volcanic ash .. we seen how volcanic ash floats on water and those volcanoes were probably venting ash for a long while after the bombardment ceased and that is why the entire planet is covered in this “stuff” .

SS: the two maps below i think shows the martian volcanic ash which is the smoother area with less impacts since the ash covered the impacted surface .. we can only see some of the original impacted martian surface .. that spaceship must have crashed later after the bombardment ceased .. i think we really need a technology to be able to see under the ash stuff .

Mystery Mars Formation May Be Ancient Volcanic Ash 24 May 2012 Scientists studying Mars have long been perplexed by the planet’s Medusae Fossae Formation, a 620-mile-long (1,000-kilometer) deposit near the equator. Researchers aren’t sure what the formation is made of, and their efforts to find out over the years have been stymied by a thick dust layer that covers all of Medusae. “It completely masks the surface from orbital view to spectrometers,” said Mars researcher Jim Zimbelman, of the Center for Earth and Planetary Studies at the Smithsonian Institution’s National Air and Space Museum. “So we have zero compositional constraints on it.” Some scientists think the Medusae formation is a huge pile of compressed volcanic ash, while others suspect it’s a blanket of consolidated wind-blown dust. Over the years, other theories have proposed an oceanic origin for Medusae, or suggested that much of it may be composed of Martian water ice.

Part of the reason for publishing the study now, he said, is “to just plant the seed in the Curiosity science team’s mind that, when they’re exploring the mound looking for their life features, if they come across any of these uniformly layered materials that represent the upper parts of the mound — that could give us the very first compositional measurement of what this stuff is. That would be huge.”

Medusae Fossae Formation (units outlined in red) on global geologic maps of Mars. Area shown covers 15 S to 15 N latitude, 135 to 235 E longitude. [Portions of geologic maps by Greeley and Guest (1987; Map I-1802-B) and Scott and Tanaka (1986; Map I-1802-A); both Misc. Invest. Series maps of the U.S. Geological Survey] (NASA/JPL-Caltech/UA)