During the last week of Febraury, 2018, on Sol 4999 since landing on Mars (14 tears ago), Opportunity woke up at took a picture of the sunrise over the southeast rim of Endeavour crater. Opportunity then proceeded with its science activities here on the inner wall of Endeavour crater.
For its special sol 5000, Opportunity did a selfie using the microcopic imager on the end of the arm. The other Mars Exploration Rover, Spirit, had used the microscopic imager to do a selfie (actually just images of the of the underside of the rover to look for clearance on a rock) many years ago. But this was the first time that Opportunity had attempted a true selfie. Because the Microscopic Imager is a fixed focus "handlens", images of far away features are out of focus and the mosaic selfie is not perefct. But when these images arrived, the Science Team and Rover Engineers were a bit surprosed that the selfie was actually pretty good. The selfie is a bit blurry, but as a sol 5000 "birthday" present, it is a great selfie from of a verteran Mars Rover on Mars. It is an excellent example of an old rover learning a new trick.