So, if the moon didn't form with the Earth, where did it come from ... believe the moon formed when the young Earth was ...

The total angular momentum of Earth's spin, the moon's spin and the moon's orbit is very large — far higher than for any other terrestrial planet. So how did we get so much momentum? Plus ...

Earth grew to its final size through one last major collision with another Mars ... and sodium on the moon, and also an opportunity for lots of mixing between the proto-Earth and the material that ...

Furthermore, the findings bolster the theory that the moon formed when a giant, Mars -size protoplanet slammed into the young ...

We preselected all newsletters you had before unsubscribing.

Museum planetary science researcher Prof Sara Russell explains the origins of Earth's closest companion. 'There used to be a number of theories about how the Moon ... Did you know we’re offering an on ...

So what causes a lunar eclipse, when is the best time to view this one—and how did it get ... moon orbits the Earth and the Earth orbits the sun, the three bodies are forever getting in one ...