Our Moon is a natural satellite. This is a natural object that orbits or circles around a planet or star. The Moon is believed to have been an irregular piece of our planet that got knocked off by a comet. The moon has a very light atmosphere called an exosphere. The Moon also had dust! It is actually very fine soil. From Earth, the Moon looks like it has a round shape, but up close, it actually has a slightly smushed egg shape because the Earth’s gravity pulls on the Moon causing this shape!