The satellite of the Earth is the Moon. A satellite is any object that orbits around a planet or celestial body. In this case, the Moon orbits around the Earth, making it our natural satellite. The Moon is the fifth-largest natural satellite in the Solar System, and it is the largest relative to the size of its host planet. The Moon is also the brightest object in our night sky, and it plays an important role in stabilizing the Earth's rotation and creating tides in our oceans.