Nasa’s Mars rover Curiosity seems to have discovered an ancient streambed. The water probably flowed in large volumes in hip-deep places across the Martian surface. Photos taken by the Curiosity rover has revealed stones cemented into conglomerate rock. Some of them are round which means they were transported a long way by water.
The Scientists predict that the water was moving about 3 feet per second. This is the first time they have seen water-transported gravel. The photograph of the water-transported gravel was taken inside a place called Gale Crater. They think the water flowed billions of years ago.
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