The Moon is getting 1½ inches (3.8 centimeters) farther away from the Earth every year. Scientists measure the distance to the Moon by bouncing lasers off mirrors placed there by space probes and ...

The gleaming moon hanging in our sky has been the subject of countless songs, poems, myths, and legends. But in reality, what would happen if the Earth suddenly lost the moon? Quite a few things, ...

With this explosive mechanism, the proto-Earth could have had a longer day of four to six hours and an angular momentum similar to that of the present Earth-moon system. Yet this idea was also ...

New research suggests that Theia, the object whose collision with Earth is theorized to have caused the formation of the moon, came from closer to the sun. Artist’s impression of the collision between ...