So, with today's announcement, Opportunity was basically [declared dead](https://arstechnica.com/science/2019/02/opportunity-did-not-answer-nasas-final-call-and-its-now-gone-to-us/)

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> When the dust storm originally engulfed Opportunity last year, mission scientists were hopeful that they might yet recover the rover. Sure, it had to steer with just two instead of four wheels, and the rover was showing its age. But even then, its batteries had retained 85 percent of their original capacity. Now, though, NASA scientists know it will never emerge from Perseverance Valley, a feature carved into the rim of Endeavor Crater by flowing water in a distant age.
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Is there still a chance that some random wind or other event on Mars might clean Opportunity up and allow it to charge up again? And would it try to automatically phone home if it did?