When we think of natural satellites, the moon is the first one that usually comes to mind. However, there are also several antonyms for natural satellites. These include man-made satellites, artificial satellites, and space debris. Man-made satellites are objects that are launched into orbit by humans for various purposes, such as communication, navigation, and scientific research. Artificial satellites refer to any object intentionally placed into orbit by humans. Space debris refers to any non-functional objects that are floating in space, including old satellites, rocket parts, and even fragments from spacecraft collisions. Although these objects are not considered natural satellites, they still play an important role in our exploration and understanding of space.