The moon is Earth’s constant companion. It’s up there in the sky, transforming from a curved sliver to a disc and back again. Some nights, it disappears. We sing songs about it and send spacecraft and astronauts to visit it. If you enjoy stargazing, then make the moon part of your viewing routine. Here’s what you need to know to get the most out of your moon-watching. Where did the moon come from? From talking fridges to iPhones, our experts are here to help make the world a little less complicated….