... from the outer solar system, this means that Theia itself must also herald from the same region of...the carbonaceous material contained within this planet-size transformer of worlds, Theia, was enough to supply the entire amount of water on Earth,...
.... When the proto-Earth was forming, the theory goes, it was hit by another emerging protoplanet named Theia, about the size that Mars is today. The collision caused both planets to temporarily splatter apart into...
... proto-Earth had formed, it collided with another body we call Theia, which is thought to be roughly the size of present-day Mars (about... a third the size of Earth). Theia gave up its core to the proto-Earth in a massive impact...
... like this entity that holds them together, these blobs have been assigned similar names, such as Theia, Eos, Selene and Helios. A proto-cluster named Colossus had already been found contained with Hyperion...