Section 1
Radar Reveals Texture
Key Idea
Since Venus is covered in thick clouds, scientists use radar to map its surface. Radar provides data about the texture and shape of the ground, serving as the primary evidence for geological analysis.
Specific radar patterns reveal distinct features. Circular mounds with pits indicate volcanoes, while smooth, flat areas suggest hardened lava flows. These detailed observations provide the data needed to understand the planet's history.