The satellite of the Earth is the Moon. A satellite is an object that orbits around a larger object in space. In this case, the Moon is a natural satellite that orbits around the Earth. It is the fifth largest moon in the solar system and the largest relative to its host planet. The Moon is believed to have formed about 4.5 billion years ago when a Mars-sized object collided with the early Earth, and debris from the impact coalesced to form the Moon. The Moon's gravitational influence causes tides on Earth and has played a significant role in shaping our planet's geology and evolution. Humans have sent spacecraft to study the Moon, and it remains an object of fascination and scientific research.