Wikipedia
Mehet-Weret (mḥ.t-wr.t) is a goddess of the sky in Ancient Egyptian religion. Her name means "Great Flood".
She was mentioned in the Pyramid Texts. In Ancient Egyptian creation myths, she gives birth to the sun at the beginning of time, and in art she is portrayed as a cow with a sun disk between her horns. She is associated with the goddesses Neith, Hathor, and Isis, all of whom have similar characteristics, and like them she could be called the " Eye of Ra".
Mehet-Weret is primarily known as being the “Celestial Cow” or “Cow Goddess” because of her physical characteristics, but she contributes to the world in more ways than that. She is also the Goddess of Water, Creation, and Rebirth; in Egyptian mythology, Mehet-Weret is one of the main components in the making and survival of life.