Mars Mystery: Has Curiosity Rover Made a Big Discovery?

NASA's Mars rover Curiosity has apparently made an important discovery "for the history books," but we'll have to wait a few weeks to find out what the new Red Planet find may be, media reports suggest.

The discovery was made by Curiosity's Sample Analysis at Mars instrument, NPR reported today (Nov. 20). SAM is the rover's onboard chemistry lab, and it's capable of identifying organic compounds the carbon-containing building blocks of life as we know it.

SAM apparently spotted something interesting in a soil sample Curiosity's huge robotic arm delivered to the instrument recently.

"This data is gonna be one for the history books," Curiosity chief scientist John Grotzinger,…
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