. From :- Live Science By Adam Mann Contributions from Marilyn Perkins published 9 hours ago Edited by :- Amal Udawatta Here you can see what all the phases of the moon look like. (Image credit: Alberto Agnoletto/EyeEm Quick facts about the moon How far away it is: An average of 238,855 miles (384,400 kilometers) from our planet How big it is: 2,159 miles (3,475 km) across, or about one-fourth our planet's size How old it is: About 4.4 billion years old The moon is our constant companion and the only natural object that always orbits Earth. It's about four times smaller than Earth and its gravity is much weaker, which is why astronauts bounce around on it like a trampoline. But even though our moon is relatively small, it still has a big effect on our planet. The moon is why our oceans have tides, and it may even help stabilize Earth's tilt and rotation, kee...