火星表面的山丘、棱线和车辙
2020 January 26 Hills, Ridges, and Tracks on Mars Image Credit: NASA, JPL-Caltech, MSSS; Processing & Copyright: Thomas Appere Explanation: Sometimes, even rovers on Mars stop to admire the scenery. Just late last November the Curiosity rover on Mars paused to photograph its impressive surroundings. One thing to admire, straight ahead, was Central Butte,...