History of NeptuneIn Roman mythology Neptune (Greek: Poseidon) was the god of the Sea. Neptune was first observed by Galle and D'Arrest on Sept 23 1846. Neptune has been visited by only one spacecraft, Voyager 2 on Aug 25 1989.
Facts about Neptune: The radius of Neptune is 4 and the mass is 17. It has 8 moons and is the eighth planet from the sun. |