Whether or not you believe in aliens, you've got to admit that the moon has been an amazing and mysterious object for thousands of years. Its beauty and wonder have captured the imagination of many cultures. And this week is going to be one of the best times to watch it: It's a full moon, which means it'll be close to Earth. So how does it stay up there? The answer lies in gravity.
As Live Science explains, the moon is constantly pulled by Earth's gravity. But it also has a velocity perpendicular to the displacement between the moon and the Earth, a property called tangential velocity. This gives the moon a circular motion rather than falling towards Earth.
Even so, the lunar surface is pocked with craters of all sizes, evidence of past impacts by planet-forming debris that's no longer zipping around our solar system. That's why movies like "Armageddon" and "Deep Impact" are so popular, though their predictions of asteroid impact have yet to prove accurate.
Dreaming about the moon falling to Earth suggests that you are feeling vulnerable or unsafe. This could be due to an event that has left you feeling unbalanced or insecure. Or it may be a sign that you are exploring deeper parts of your psyche and not knowing what to expect. The earth, on the other hand, represents stability and constancy. It's a good thing that the moon doesn't fall into the earth, or we'd all be in trouble!