The instrument has established that winds generally blow east-west on the floor of the crater - something of a surprise to researchers who thought the rover's position close to the northern slopes of Gale's big central mountain might drive winds in a prevailing north-west direction as air moved up and down the peak in a day-night cycle.

BBC: Dust-devils flirt with Curiosity Mars rover

In assessing the direction of the company, one that is without a peer, the prevailing question continues to be, how much is social media worth?

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