It was also known as Etra, teia or Tea. In Greek mythology it was one of the Titanides, from which all light comes. She was the mother of Selene (The Moon), a product of her relationship with Hyperion. Another denomination he received was Etra. Name of a hypothetical primitive planet, of our solar system, which when colliding with the Earth, with its debris formed the Moon.
Also Teia and Tea. Alleged ancient solar system planet that, according to scientists, would have collided with earth about 4 years ago. 500 million years ago, from whose remains and terrestrial debris the Moon would have formed. The name assigned by scientists of the theory of the great impact has mythological origin, because Theia or Theia was a Titan mother of the goddess Selene.