The leading explanation for all of these mysteries is known as the giant impact hypothesis. According to this story, when the ...

So, if the moon didn't form with the Earth, where did it come from ... believe the moon formed when the young Earth was struck by another planet (dubbed Theia for the mother of the Greek moon ...

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 ...

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 ...

If you slept through Friday morning's total lunar eclipse, also known as the "Blood Worm Moon" several people were able to capture some video and photos overnight. It's called the Full Blood Worm Moon ...

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 ...