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No Signs of Water Yet from Mars Lander

from the Los Angeles Times (Registration Required)

In its first chemical analysis of soil from Mars' northern plains, NASA's Phoenix lander has turned up no evidence of water, scientists said Monday.

Still, researchers remained confident that the craft is in the right place to uncover veins of ice believed to lie only inches beneath the surface.

A soil sample was cooked twice in one of Phoenix's eight ovens over the last few days, according to William Boynton, lead scientist for the Thermal and Evolved-Gas Analyzer, or TEGA. ... "Had there been any ice, it would have melted," Boynton said. "We saw no water in the soil whatsoever."

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PODCAST & VIDEO: Engineering Around Extreme Events

Extreme events, such as super floods and hurricanes, are becoming more common, so civil engineers are trying to adapt civil infrastructure such as bridges to these unpredictable and sometimes devastating meteorological events. Engineer Ana Barros discusses how engineering can prepare us for extreme weather events, but also how changing climate and population conditions can affect the ability of infrastructure to hold up over time.

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