Formation of the milky way
Zeus and Amphitryon's children were carried in the same womb by Alceme. However, nobody was sure which of the twins, Alcides and Iphicles, belonged to whom when she gave birth. The larger of the two, Alcides (Hercules), was indeed Zeus's son, as Alceme correctly assumed. She chose to abandon the child, leaving Alcides to perish from exposure in a Theban field, out of fear that Hera would get revenge on her. However, his half-sister and protector, the goddess Minerva (Athena in Greek myth), rescued the abandoned Hercules. Knowing exactly who she had saved, Athena played tricks on Hera and gave the child to her.
Ironically, Hera started bringing up the kid she had prevented from being born because she had failed to recognize Hercules. By consuming the milk of Goddess Hera, Hercules was revived and strengthened even more. One day he once sucked too hard on Hera's nipple. Painfully, Hera pulled the child from her breast. As a result, Hera created the milky way by spraying her motherly milk into the sky. The formation of the milky way is one of the most famous myths featuring Hercules. After Athena sent Hercules back to Alcmene and Amphitryon, his parents then realized it was the god's intention that he grew up with them.