
Theia, the planet that gave rise to the Moon after the impact with the Earth: confirmation from lunar rocks
Artist’s impression of the titanic collision between two planetoids in the early Solar System. Credits: NASA/JPL–Caltech. Theiathe planetoid about the size of Mars that impacted the Earth about 4.5 billion years ago, giving rise to Moonwould not come from remote areas of the Solar System but from the internal Solar System: in short, it was a “neighbor” of the Earth. ...








