Pegasus was a mythological horse from Greek mythology. It was supposedly a dazzling white horse with two great feathery wings sprouting from its back. It was said to be the son of Poseidon and Medusa.
After the hero Perseus slayed the gorgon Medusa, the blood that flowed from her neck spread over the ground and from it formed grassy fields and gushing rivers; beautiful trees and singing birds also came, and finally, the Pegasus. The Greeks say that Pesasus flew from the isle afterwards towards the mountain Helicon, where he was watched over by the Muses. (An
alternation of the story is similar as it states Pegasus was formed when the blood of Medusa met the sea foam, thus meaning that Medusa was the mother and Poseidon the father). Pegasus is also said to have a human brother, Chrysaor, who married the Ocean nymph Callihroe and was the father of Geryon, the three headed monster that was slain by Heracles as part of his tenth labour. Geryon had a dog Orthrus, which was said to be the brother of Cerberus.
Some years passed before Athena found Pegasus and presented him to the Greek hero, Bellerophon. She also gave Bellerophon a golden bridle, or harness, to tame Pegasus. While Pegasus was grazing on the banks of a stream, Bellerophon threw the golden bridle over Pegasus's head to tame him. Once he was tamed, Bellerophon and the winged equine became thick friends and galloped over the seven seas and the mountains.
It is said that Pegasus could gallop faster than the wind. So while riding on Pegasus, Bellerophon conquered Chimera, a large three-headed monster. However, success made Bellerophon an arrogant person. He wanted to fly up to Mount Olympus, the abode of the gods that lived there. Zeus, the king of gods, punished the insolence man by causing him to fall off the steed. However, the gods of Mount Olympus welcomed Pegasus and He became the favorite horse of Zeus and carried the weapons of Zeus.
As a reward for his service, Zeus created a constellation for the winged equine in the night sky of the earth.
On the hit sci-fi tv series Stargate: Atlantis, the humans send an expedition to the Pegasus Galaxy, all the personnel who travels to that galaxy have on their uniforms, an insignia resembling a Pegasus.
On the hit kids series Beyblade Metal Fusion\Metal Masters the main charater Gingka Hagane owns a spinning top named after Pegasus called Storm Pegasus and as of Metal Masters Galaxy Pegasus