Narrator: Our moon is on the move. Each year, it drifts an estimated 1.5 inches further away from Earth. And in the process, Earth's rotation is actually slowing down. What if one night ...

We always see the same side of the moon, but part of it is in shadow, due to the moon's rotation. Only when the moon, Earth and the sun are perfectly aligned is the moon 100% full. And sometimes ...

No. The Moon is actually gradually getting further away - every single year the Moon moves about four centimetres further out. This is because there is a small amount of friction between Earth and the ...

because the length of the tide cycle is determined by the Earth's rotation, the tide cycle should be 24 hours long. The reason it's longer is that, during a 24-hour period, the moon travels about ...