NASA's Curiosity rover finds a mysterious doorway on Mars, spark speculations - CNBCTV18

For the past ten years, NASA's Curiosity rover has been trundling around the surface of Mars, taking photos in its quest to understand the history and geology of the red planet and perhaps even find signs of life. Last week it took a photo that appeared to sh…

MiniFor the past ten years, NASA's Curiosity rover has been trundling around the surface of Mars, taking photos in its quest to understand the history and geology of the red planet and perhaps even f… [+97 chars]

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