et, as seen from the photo. It appears to be very hilly with some kind of flat plane running from the middle of the planet, up. (see photo)
So far, NASA has not really done anything here except what they do for all planets. They took it's photo and are studying the planet. However, they have not landed on it or taken any evidence from the planet itself. It is unknown if they will do anything in the future, but they have launched 2 satellites.