Mars Mission
01- Canals
02- Mariners
03- Riverbeds
04- Sub-surface Ice
05- Fleet
06- Martian Ice
07- Slope Streaks
08- Water Found
09- Phyllocian Era
10- Theikian Era
11- Siderikan Era
12- Martian Regions
13- Obliquity
14- Martian Tectonics
15- Topographic Morph
16- Crustal Magnetism
17- Original Impact
18- Polar Regions
19- Hydrated Minerals
20- Theikian Warming
21- New Phoenix Snow
22- Equatorial Glaciers
23- Ancient Ice
24- Continental Snow Drift

4 - Sub-surface Ice

Polar Cap


But what happened to the water and the atmosphere?

This has been the main question for Martian researchers in recent decades. What process could strip a planet of its atmosphere and oceans? Was it connected to former volcanic activity, as the dried riverbeds seemed to be associated with the network of huge volcanoes? Many suspected that its remaining water was buried as sub-surface ice beneath the poles.

  Alan Lambert 2009