Mars Rover Investigates Possibility of Ancient Microbial Life

Riding with Robots writes "The robotic geologist Spirit, now scurrying to reach a safe haven before the harsh Martian winter sets in, has found signs that explorers say point to hot springs or fumaroles in the Red Planet's distant past. That possibility is not only interesting geologically, but potentially biologically, since those kinds of environments on Earth teem with microbial life. Meanwhile, on the other side of the planet, Opportunity continues its descent into a deep crater, where it has found other clues about the ancient waters of Mars."

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[Kamokazi]

I liked this title better: "Mars Rover Investigates Steamy Martian Past" But on a serious note, those rovers continually prove they were one of the best investments NASA ever made.