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Speed is...relative

Speed is...relative
Speed is...relative Opportunity navigated near 25-degree slopes in May, though fortunately much of it was “cross-slope,” said JPL’s Rover Planner Paolo Bellutta. “She seems to be glued to the road like a Porsche,” he said. Hmmm. “The speed is not the same,” he noted. “Oppy moves at a top speed of 135 mph – meters per hour, not miles.” On Earth, MER Deputy Principal Investigator Ray Arvidson actually drives a Porsche Cayman, his dream car. We cannot say here what speed he’s topped out at, but you can bet it’s faster than the rover’s 135 mph. Arvidson/Porsche: Susan Slavney, WUSTL. Oppy on Burns Cliff: NASA / JPL-Caltech / Cornell / ASU