What would happen if the earth had no moon?

Earth without its moon would be a very different world indeed. No eclipses. Smaller tides. But the biggest change would be in the length of Earth's day. read more

Forget about seeing any lunar eclipses -- or any solar eclipses -- without the moon, there would be nothing to block the sun. 5. Without a moon the tilt of our earth's axis would vary over time. This could create some very wild weather. Right now, thanks to our moon, our axis stays tilted at twenty-three point five degrees. read more

The moon also affects the altitude of the ocean; the gravitational pull of the moon causes a "bulge" of water around the middle of the earth. In other words, the poles have less water than the equator [source: ScienceLine]. If the moon didn't exist, the bulge of water would disperse, rushing to the shallower poles. read more