Exploration

It's amazing how little we really knew about the mooon before we actually landed men on the surface. It just amazed me whatching this video from the national archives how much was unknown when we landed. You tend to take information for granted. Will we really find out things that our machines were not able to tell us when we land on Mars? I think that there are some things that we will never know about Mars untill we put human eyes and feet on the martian surface but, hopefully we'll be more prepared than the Apollo astronauts were anyway...