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- Satellite - Wikipedia
Satellites are spacecraft launched from the surface into space by launch systems Satellites can then change or maintain their orbit by propulsion, usually by chemical or ion thrusters
- Communications satellite - Wikipedia
A communications satellite is an artificial satellite that relays and amplifies radio telecommunication signals via a transponder; it creates a communication channel between a source transmitter and a receiver at different locations on Earth
- Satellite imagery - Wikipedia
Satellite images (also Earth observation imagery, spaceborne photography, or simply satellite photo) are images of Earth collected by imaging satellites operated by governments and businesses around the world
- Satellite navigation - Wikipedia
Satellite navigation (satnav) or satellite positioning is the use of artificial satellites for navigation or geopositioning A global navigation satellite system (GNSS) provides coverage for any user on Earth, including air, land, and sea
- Natural satellite - Wikipedia
Natural satellites are colloquially referred to as moons, a derivation from the Moon of Earth In the Solar System, there are six planetary satellite systems, altogether comprising 419 natural satellites with confirmed orbits
- Satellite (artificial) - Simple English Wikipedia, the free encyclopedia
In space, satellites may be natural, or artificial The moon is a natural satellite that orbits the Earth Most artificial satellites also orbit the Earth, but some orbit other planets, or the Sun or Moon Satellites are used for many purposes
- Satellite system (astronomy) - Wikipedia
A satellite system is a set of gravitationally bound objects in orbit around a planetary mass object (incl sub-brown dwarfs and rogue planets) or minor planet, or its barycenter
- What is a satellite? - NASA
There are two different types of satellites – natural and man-made Examples of natural satellites are the Earth and Moon The Earth rotates around the Sun and the Moon rotates around the Earth A man-made satellite is a machine that is launched into space and orbits around a body in space
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