The document discusses key facts about the Earth-Moon system. It begins by providing scale comparisons showing that the Moon is about 1/4 the width of Earth and its radius is 1080 miles. It also notes that the Moon's gravity is about 1/6 that of Earth. Another section explains that if Earth were the size of a basketball, the Moon would be about the size of a tennis ball and located 23.5 feet away. The document concludes by stating that the Moon rotates once every 27.3 days and orbits Earth also every 27.3 days in an elliptical path ranging from 360,000 to 406,000 km away.