Americans are also not foreign to show-off: July 4 – Independence Day, in time for the NASA holiday and timed landing on Mars automatic station Mars Pathfinder. Experts planned that on the same day, the rook Sojourner, who had arrived on up at the station, would also drop onto the surface. But he hesitated because of a failure in the long-distance communication system. And he went to Mars on July 5th. Rover was the first mobile device on the Red Planet. Compared to his descendants – Spirit rovers, Opportunity and Curiosity – Sojourner was a crumb. Weighed less than 11 kilograms, the size was toy – 65x48x30 centimeters. But he moved around, explored the surrounding rocks, and allowed to gain experience.
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