There is no single, universally recognized "sky goddess." Different cultures and mythologies have their own sky deities, each with unique characteristics and roles. Here are a few examples:

Greek Mythology:

* Uranus: The primordial god of the sky and father of the Titans. He was overthrown by his son, Cronus.

Roman Mythology:

* Jupiter: The king of the gods and ruler of the sky. He was equivalent to the Greek god Zeus.

Norse Mythology:

* Thor: The god of thunder, lightning, and storms. He was also associated with the sky.

Egyptian Mythology:

* Nut: The goddess of the sky, who gave birth to the sun, moon, and stars.

Mesopotamian Mythology:

* Anu: The god of the sky and the heavens. He was the father of the gods and ruled over the universe.

Hindu Mythology:

* Dyaus: The sky god in Vedic mythology, often associated with the sky, rain, and thunder.

Native American Mythology:

* The Great Spirit: Many Native American cultures believe in a singular, all-powerful being that resides in the sky.

As you can see, the concept of a sky goddess varies widely. It's important to specify which culture or mythology you are interested in when asking about a "sky goddess."