The venerable Mars rover Opportunity, the older and smaller cousin of Curiosity, has discovered another water-weathered rock hinting that the Red Planet could have supported life in its ancient past, NASA officials said.
In its last days exploring "Cape York," a site on the rim of the giant Endeavour crater, the Opportunity rover examined a fractured rock unlike any it has seen during its nine years on Mars, researchers say.
With data from a camera and spectrometer on the rover's robotic arm, researchers found that the rock, dubbed "Esperance," is a relic of a wetter time on Mars when life may have been possible.
Story continues here: Space.com
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