Circle contact distance entire identify journey message neighbor powerful surface tool for centuries, people have studied the moon. in the past, some thought it was made of cheese. others believed it was so it could change people into werewolves! (is a being that is part human, part wolf) today, we know a lot more about the moon: it’s about one quarter the size of earth. it’s our nearest the to the moon is about 386,250 km (240,000 miles). it was formed about 4.6 billion years ago from rock and debris from the earth. in 1609, the scientist galileo first looked at the moon with a (an) called a telescope. in 1969, astronauts neil armstrong and buzz aldrin made the first from earth. in a (an) from the moon’s armstrong said, “that’s one small step for man, one giant leap for mankind”. the moon the earth, and it looks different in the sky at different times of the month. we call these different views the “phases of the moon”. it takes about 29 days for the moon to complete a (an) cycle from full to full.