Artificial Satellite
An artificial satellite is a man-made object that is intentionally placed into orbit around the Earth, Moon or other celestial body. Artificial satellites are used for a variety of purposes, including scientific research, communication, navigation, Earth observation, and military reconnaissance. They are typically launched into space using rockets and can be placed into a variety of orbits depending on their intended use. Some artificial satellites are designed to remain in orbit for a short period of time before re-entering the Earth's atmosphere and burning up, while others are designed to remain in orbit for many years or even decades. The first artificial satellite, Sputnik 1, was launched by the Soviet Union in 1957, and since then thousands of satellites have been launched by various countries and organizations around the world.
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