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polar ranger, Tag
- NASA’s Solar-Powered Polar Explorer Passes Sub-Zero Field Tests in Greenland Wed, 10 Jul 13, 11:35pmNASA's autonomous polar rover, the GROVER, has completed its initial tests in Greenland, coping with some of the harshest environments on the planet. GROVER, which stands for both Greenland Rover and Goddard Remotely Operated...