Question

These satellites have icy surfaces - how well does ice preserve evidence of geological events (e.g. collisions or tectonics)?

Answer 1

Ice surfaces on satellites can preserve evidence of geological events such as collisions or tectonics. For example, MESSENGER discovered water ice and organic compounds mixed with ice on Mercury's craters.

Step-by-step explanation:

Ice surfaces on satellites can preserve evidence of geological events such as collisions or tectonics. For example, the MESSENGER mission discovered water ice and organic compounds mixed with the ice on the surface of Mercury's craters. On Mars, high-resolution photos have revealed glaciers covered with dirt and dust, indicating evidence of past geological events. Additionally, the survival of impact craters on the icy surface of Callisto suggests that ice can retain evidence of geological events.