When NASA on Monday confirmed the presence of liquid water on Mars, some scientists said the findings increased the likelihood of finding life on the Red Planet and of learning much more about its past. The discovery also boosted the prospect of an eventual human mission to explore the planet.
Robin Wordsworth, an assistant professor of environmental science and engineering, has studied Mars' water cycle to shed light on the planet's watery—or more probably icy—history. In work released in June, Wordsworth and colleagues found that ice is the likelier scenario to explain the physical feat...
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