Very elliptical orbits around the sun. When inside the orbit of Saturn, the frozen gases vaporize and become visible. Most are about the size of Jupiter. The tail always points away from the Sun because it is being pushed away from the Sun by the solar wind. Rotation period equals one synodic month, so the same side of the Moon is always facing the Earth.
All atmosphere has escaped, so there are many craters.
Phases of the Moon - the portion of the Moon that we see from the Earth that is illuminated by the Sun changes in a cyclic pattern with a period of one synodic month. Click here to see different phases of the moon for the last 200 years and the next 200 years. Solar - moon goes in front of the sun. Meteoroids - Space particles captured by Earth's gravity. Meteorites are meteoroids that have survived passage through Earth's atmosphere, have crashed into the Earth, and have been found.