the landing site. >> antares houston. you're good. >> a beautiful day to land at fra mauro. >> then another problem. the landing radar which would tell them their altitude above the lunar surface. >> radar. radar. >> they would like to cycle the landing radar. >> okay. recycle. >> okay. accept the radar. >> this is so great. >> okay. monitor the fuel. >> ten seconds to go. >> over. >> and there it is! right on the money. beautiful. right out the window. >> a go for landing. a major part of the mission for fra mauro, a hole blasted in the moon's surface eons ago that could provide a scientific clue to the history of the moon, the earth, and the solar system. >> we think of the fra mauro that it was created to the north. if this is the case, we could get samples torn out from as deep as 60 miles in the lunar crust. all in all, the fra mauro material should contain a great deal of new information about the early history of the moon and thus help us to better understand the formation of our own earth. >> 200 feet. it looks go