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Mars Rover Finds Water Evidence

NASA’s control room must be beside itself right now: The Mars Curiosity Rover just rolled into what appears to be an ancient river bed left over from a flowing waterway that existed billions of years ago. The first clue emerged when Curiosity spotted an unusually textured rock that turned out to be a composite of tiny rocks that had been rounded and eroded by flowing water. Scientists say there could have been an ankle or hip-height river that flowed at two miles per hour, possibly for thousands or millions of years. The rover will be analyzing the area for evidence of organic carbon that could indicate ancient life on the inhospitable planet.