Ask Astro: How quickly is the Moon moving away from Earth? - Astronomy Magazine

The Moon is moving away from Earth at about 1.49 inches (3.78 centimeters) per year. And as it moves away, its orbital period increases and Earth’s rotation slows down.

At what rate is the Moon moving away from Earth? What kinds of consequences will our planet see as our satellite moves farther away? Let’s first look at why the Moon is moving away from us. It boils… [+1393 chars]

full article...