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Science waiting With extended mission proposals due Feb. 14, 2019, the science team began meeting in
November to determine what they would like Opportunity to do next year, provided the rover is
recovered. After finishing work in Perseverance Valley, one desire, according to MER Deputy P.I.
Ray Arvidson, is to go inside Endeavour Crater and check out what appears to be a wind-excavated
sulfate-rich moat and mound. The moat, which is -1900 meters in elevation, is visible
in this image (blue) created by MER Deputy Project Scientist Abby Fraeman as a kind of
horseshoe hugging the eastern and western sides of the crater. A subtle mound, Arvidson
hypothesized, formed as a result in the center of the crater, “pushed up a little bit against the
northern side.” NASA / JPL-Caltech / MSSS / JHUAPL