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A satellite or artificial satellite is an object, typically a spacecraft, placed into orbit around a celestial body. Satellites have a variety of uses, including communication relay, weather forecasting , navigation ( GPS ), broadcasting , scientific research, and Earth observation.
Learn about the types, sizes, altitudes and purposes of artificial satellites. Find out how they are designed, launched and used for various applications such as navigation, communication, weather and astronomy.
Dec 2, 2009 · Learn about the history, types, and missions of human-built objects orbiting the Earth and other planets. Find out how satellites are launched, tracked, and studied by various space agencies and companies.
5 days ago · Satellites are used to study the many celestial bodies in the solar system. To date, artificial satellites have orbited many significant planets and moons in our solar system, as well as numerous smaller objects like dwarf planets, asteroids and comets.
Jun 25, 2024 · Earth satellite, artificial object launched into a temporary or permanent orbit around Earth. Spacecraft of this type may be either crewed or uncrewed, the latter being the most common. The idea of an artificial satellite in orbital flight was first suggested by Sir Isaac Newton in his book Philosophiae Naturalis Principia Mathematica (1687).
- The Editors of Encyclopaedia Britannica
Artificial satellites are human-built objects orbiting the Earth and other planets in the Solar System. They are used to study the Earth, other planets, aiding communication, and even to observe the distant universe. Satellites can even have people in them, like the International Space Station.
May 17, 2018 · Learn about the history and applications of high-resolution commercial satellites that provide forensic information from areas that are otherwise inaccessible. Find out how these satellites can depict detail as small as 0.62 meters and how they are used in crime investigation, disaster relief, and environmental monitoring.
