The last words of NASA's Mars rover Opportunity were "My battery is low and it's getting dark". However, the rover didn't actually say this, as it communicates using data. ExplanationThe phrase was a poetic interpretation of the rover's final moments, as reported by science reporter Jacob Margolis. The phrase became widely circulated and misinterpreted, leading Margolis to write an article clarifying the situation. The last contact with Opportunity was on June 10, 2018, when a dust storm damaged the rover's solar panels. The rover continued to be silent even after the storm ended in early October, suggesting a catastrophic failure or a layer of dust on its solar panels.