Imagine you’re floating in space, and you give a little push to an object. In that weightless environment, the object would start moving and keep moving all by itself. You wouldn’t need to keep pushing it to make it go. This is because there’s no gravity or air resistance in space to slow it down. So, once you get things moving up there, they tend to keep going until something else stops them. It’s like giving something a gentle nudge and watching it sail off on its own adventure!