Where Water Once Flowed

Our intrepid adventurer has discovered evidence of a stream on our sister planet Mars. The stream flowed fast and for a great distance it would seem. ""From the size of gravels it carried, we can interpret the water was moving about 3 feet per second, with a depth somewhere between ankle and hip deep," said Curiosity science co-investigator William Dietrich of the University of California, Berkeley.

Perhaps, beneath the sands and shale there are great cisterns of water, built by the Fremen...err, wait, that's Arakis. 

Read full article.