It’s Spring on Mars—and That Means Violently Explosive Geysers and Avalanches newsthirst.
When the frozen carbon dioxide has all melted in the summer, distinctive marks are revealed on the Martian landscape. These are known as “araneidoform terrain,” because they look like spiders when seen from space. Some of these spider-like landforms are more than a kilometer across, and some have hundreds of legs. They are often found…