Yesterday NASA officially ended the Opportunity rovers' 15 year mission to Mars. They lost contact with the rover last year in June after a massive dust storm covered the planet. Engineers believed that the solar panels powering Opportunity had been covered by dust and had hoped that especially high winds over the last couple of months would unblock the panels. A last message was sent to the bot on the 12th and the mission was ended early on the morning of the 13th when no response was received.
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