Aither primordial God of light

Aither (Aether) was the primordial God (protogenos) of light and the bright, blue ether of the heavens. His mists filled the space between the solid dome of the sky (ouranos) and the transparent mists of the earth-bound air (khaos, aer). In the evening his mother Nyx drew her dark veil across the sky, obscuring the ether and bringing night. In the morn his sister and wife Hemera dispersed night's mist to reveal the shining blue ether of day. In the ancient cosmogonies night and day were regarded as elements separate from the sun.

Who Is Aether?
In the beginning, there was just Chaos. From the void emerged Erebus, the god of darkness, and Nyx, the goddess of the night. Their primordial children were Aether, the god of the heavenly air, and his sister Hemera, the goddess of the day and earthly light. They are the Protogenoi, the first born deities of the pantheon predating the well-known Olympians.

During the primordial time, according to the Greek legends, the pure air breathed by the gods was the domain of Aether. The upper air of the heavens was not the regular air of the mortals living on the Earth.

Origin
As the creation myth tells us, light and air were born from the darkness. The heavens that surrounded the planet were just below the dome of the sky. The gods breathed the air of Aether, the humans had their air on the Earth, and then there was the dark air of the underworld Tartarus, a dungeon-like place where giants were punished and souls were judged. It was as far below Hades as the heavens are above the Earth.

Aether and his sister Hemera worked together. The two were the opposite of their parents, the dark and the night who emerged each evening from Tartarus to take the planet over with darkness. In the morning, Hemara would come and clear away the darkness so the light of her brother could shine down on the Earth.

Family of Aether
The children of Aether were all primordial deities as well. The spirit of the Earth was Gaia, also known as Mother Earth. Thalassa and Pontus were the primeval spirits of the sea, and Ouenus the spirit of the sky. Aergia was the personification of laziness, while Tartarus was the spirit of the gloomy underworld. These gods predated the Olympians, who came later after everything else was created.

Historical Influence
Aether and the other Protogenoi were the gods from which all others descended. They were largely replaced with newer gods, so there is no cult center or temples built in honor of Aether.