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Curiosity Mars rover discovers ancient streambed

  • NASA’s Curiosity rover has discovered evidence of past flowing water on Mars, just seven weeks after it reached the surface of the planet.

    The robot beamed back pictures of classic conglomerates, rocks comprised of gravels and sand.

    According to scientists, the size and rounded shape of the pebbles in the rock suggest they had been transported and eroded in water were likely laid "several billion years ago".

    The U.S. space agency's $2.6 billion mission touched down on the Red Planet on August 6.

    Curiosity is funded for one Martian year, equal to two Earth years, of study.

    During that time, it will aim to verify whether past environments at Gale Crater could have supported microbial life.