The rover sees no difference between Mars and Earth. The same vast plain with some pits at the center and ridges lie far. Her internal clock always claim that a sol is no different than a day except forty more minutes of slack. Therefore most of time she rests on the edge of a crater. And soaked in the dim sunlight just like back in Mojave, at dusk. If weather permits a stretch she'll notify those remote engineers and never use up her cell. Until the day when she looked upon the glowing dome where she came from, it stroke her that Mars is different than Earth. It has two moons. One in clear sight but the other concealed itself behind the approaching sandstorm. Soon she felt drowsy underneath a sudden dune who promises gloomy sleepiness, then tranquil dormancy. Opportunity needs a distant dream after all this place is not Earthly and her cell is now empty.