The discovery of the Scorpius constellation is credited to the famous Greco-Egyptian astronomer Claudius Ptolemy. He documented it in the 2nd century CE. However, civilizations predating the Greeks may have known about Scorpius. Roughly 3,000 years before Ptolemy, it was known as "The Scorpion" by the Babylonians.
One of the Zodiac family of constellations, Scorpius is located in the southern sky, near the center of the Milky Way galaxy. It consists of a number of famous stars and several other deep space objects. The most notable of its parts are the stars Shaula and Antares, the Ptolemy Cluster and the Butterfly Cluster.