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A stellar duo, a stellar ending Although they were designed to be identical twins, Spirit and Opportunity did not have
identical personalities. Left: In their “birthing room” at JPL, those personalities began to
emerge. Team members appreciated their idiosyncrasies, and the rovers went on to
surprise everyone. Right: The gold line on the image shows Opportunity's route from the
Eagle Crater landing site to Cape Tribulation, north of her final stop and resting place in
Perseverance Valley. “The open road still softly calls, like a nearly forgotten song of
childhood,” Sagan wrote in 1994: Opportunity and the MER team heard that song. The
base image for the map is a mosaic of images taken by the Context Camera onboard
the MRO. MER Science Team member Larry Crumpler added in the route. NASA / JPL-Caltech (left); NASA / JPL-Caltech / MSSS / UA / add-ons L. Crumpler