Encara no tenim significats per a "planetary rovers".
1They could work, perhaps, as part of planetary rovers.
2The Soviet Union had demonstrated planetary rovers at scientific meetings in the U.S. beginning about 1987.
3Darpa launched its program in 1997 under the leadership of Eric Krotkov, a former Carnegie-Mellon roboticist and an expert in planetary rovers.
4Nasa has sent these sophisticated planetary rovers 34m miles across the solar system to take pictures that look just like the wild west.
5This was a problem for the first unmanned planetary rovers: the Soviet Union's two Lunokhods, which landed on the moon in 1970 and 1973.
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