
Mars geological history
Mars' geological history began over 4.5 billion years ago with heavy asteroid impacts and volcanic activity forming its surface. Early on, it had a thicker atmosphere and liquid water, creating lakes and possibly supporting past life. Over time, much of its water evaporated or froze, and volcanic activity slowed down. The planet's surface has been shaped by erosion, wind, and impact craters, resulting in features like valleys, mountains, and dry riverbeds. Today, Mars is a cold, dry desert with remnants of its wetter past preserved in layers of rocks and ice, offering clues about its ancient climate and geology.