Nut, or Neuth, was the Egyptian goddess of what?

In Egyptian mythology, Nut was the goddess of the sky. Her body made a protective layer over the Earth. Nut was the sister and wife of Geb, and the mother of (with Ra) Osiris, Nephthys, Isis and Seth and grandmother of Horus.

Nut was the goddess of the sky but had many other purposes as well. She had three other names: Nuit, Newet, and Nueth. Nut was known as the mother of all gods, including Ra (her grandfather) because she swallowed him up every night and gave birth to him again in the morning. She was also the mother of heavenly bodies, whose laughter was thunder and tears were rain. She often carried the sun across the sky. She played a part in funeral beliefs and was sometimes drawn on the tops of sarcophagi. Nut was one of the nine major gods. She was the personification of the sky and the heavens. Egyptians called her "the mother of the sky". Nut was one of the oldest deities among history.

As the sky goddess, Nut was shown arching over Geb (earth god), her fingertips near his head and her toes by his feet. She was commonly pictured dark blue and wore no robes, although some Egyptians believed that Nut wore a rainbow-colored robe, with stars all over her body. Big paintings of her were often found on ceilings of tomb chambers. She can be seen with small vulture wings or a vase on her head. She was often shown as a cow, when carrying the sun across the sky. The cow was a very motherly figure.