Because the Earth is doing the work of increasing the Moon's momentum, the Earth's rotation slows down in turn, as its momentum goes to the Moon. To put it another way, as the Moon's orbital momentum ...

(Related reading: The impacts that gave us the Moon may explain why Earth has life today) ...

The moon's gravity causes high and low tides, something known as the tidal force. As the tidal force shifts Earth's mass, it ...

The Moon, our constant celestial companion, is drifting away from Earth at a slow but measurable rate. According to a ...

This hasn't always been the case. If we take the current rate of recession and project it backwards, the Moon collides with ...