Looks can be deceiving. Every close-up picture of the surface of Mars has revealed what appears to be a barren, stony, still, and totally lifeless landscape (Figure 5.1). We do know the atmosphere is dynamic, since from a distance we can see that winds on Mars can get high enough to kick up global dust storms that last for weeks. For all we can tell, though, the surface lies frozen in lifeless immobility - and has for a very long time. But we would be wrong.
KeywordsLava Tube Mars Global Surveyor Southern Highland Viking Lander Rocky Planet
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