text: Firstly, he starts out with the statement that Earth and Venus are some of the two most similar planets. They're similar because of the shape and size, which line up nearly perfectly with Earth's. The density is close together, and it has similar face and structural features, like moutains and revenes. The artical states that, "Venus still has some features that are analogous to those on Earth. The planet has a surface of rocky sediment and includes familiar features such as valleys, mountains, and craters." The similarity between these two neighboring planets makes it all the more worthwhile to see when NASA finally reveals what is there.