Theia (planet)

Encyclopedia : T : TH : THE : Theia (planet)

Theia (/'θeɪ.a/) is a hypothetical planet that is theorized to have collided with Earth over four billion years ago and formed the Moon. This is referred to as the giant impact hypothesis.

The name derives from Greek mythology, as Theia was the Titan who gave birth to the Moon goddess Selene.

From Wikipedia, the Free Encyclopedia. Original article here. Support Wikipedia by contributing or donating.
All text is available under the terms of the GNU Free Documentation License See Wikipedia Copyrights for details.