Earth May Have Had Two Moons : Discovery News
A new hypothesis claims the Earth may once have had two moons, which eventually crashed together forming our current celestial partner.
This new idea, reported in the journal Nature, could explain a long standing puzzle about the differences between the near and far sides of the lunar surface.
The near side is relatively low and flat with many large dark basalt mare, while the far side is high and mountainous, with thicker crust.
The work, based on computer simulati… (View original article)