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If There Were Life on Mars, Curiosity Rover Wouldn't Find It If There Were Life on Mars, Curiosity Rover Wouldn't Find It

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Tech / SPACE

If There Were Life on Mars, Curiosity Rover Wouldn't Find It

NASA's Mars Exploration Rover Opportunity is spending the seventh anniversary of its landing on Mars investigating a crater called "Santa Maria," which has a diameter about the length of a football field. This scene looks eastward across the crater. Portions of the rim of a much larger crater, Endurance, appear on the horizon. The panorama spans 125 compass degrees, from north-northwest on the left to south-southwest on the right. It has been assembled from multiple frames taken by the panoramic camera (Pancam) on Opportunity during the 2,453rd and 2,454th Martian days, or sols, of the rover's work on Mars (Dec. 18 and 19, 2010).(NASA/JPL-Caltech/Cornell/ASU)

July 25, 2012

In a short video from NASA, scientists describe what the Mars rover will be looking for when it arrives on the red planet on Aug. 5 or Aug. 6, depending on the time zone: 



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"Curiosity is not a life-detection mission," says John Grotzinger, a project scientist for NASA's Curiosity mission. "We're not actually looking for life; we don't have the ability to detect life if it was there." Instead, as he and Ashwin Vasavada discuss in the video, Curiosity is a "robotic geochemist" that is looking for "the ingredients of life" — water and carbon that could have once supported microorganisms.

 

But Grotzinger continues, "The reason it's important to have this capability is this brings us back to the question of how to address the question and search for habitable environments again." So even if Curiosity can't find life, the point is still ... life. And that gets at the animating principle that lies at the heart of space exploration and Mars study in particular: Sure, there is something scientifically valuable about understanding Martian geology and chemistry on their own merits, but, really, at the end of the day, what we want to know, what we are asking, is whether there is anyone else out there. How rare is this thing, life, that we have here on Earth? And so we send robots to far-off rocks in the hopes of knowing, maybe, just a little more about ourselves."

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