火星的锡卡点
2022年8月31日 Siccar Point on Mars Image Credit: NASA/JPL-Caltech/MSSS; Processing & License: Kevin M. Gill Explanation: What created this unusual hill on Mars? No one is sure. A good outlook to survey the surrounding area, Siccar Point stands out from its surroundings in Gale Crater. The unusual mound was visited by the robotic Curiosity rover exploring M...