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Satellite - Wikipedia
Satellites are launched from the Earth's surface into space orbit by launch vehicles, high enough to avoid orbital decay by the atmosphere. Satellites can then change or maintain the orbit by propulsion, usually by chemical or ion thrusters. See more
A satellite or an artificial satellite is an object, typically a spacecraft, placed into orbit around a celestial body. They have a variety of uses, including communication relay, weather forecasting, navigation (GPS See more
Orbit and altitude control
Most satellites use chemical or ion propulsion to adjust or maintain their orbit, coupled with reaction wheels to control their See moreThe environmental impact of satellites is not currently well understood as they were previously assumed to be benign due to the rarity of satellite launches. However, the exponential increase and projected growth of satellite launches are bringing the issue into … See more
Early proposals
The first published mathematical study of the possibility of an artificial satellite was Newton's cannonball, a thought experiment by See moreEarth observation
Earth observation satellites are designed to monitor and survey the Earth, called remote sensing. … See moreCollision threat
Space debris pose dangers to the spacecraft (including satellites) in or crossing geocentric … See moreIssues like space debris, radio and light pollution are increasing in magnitude and at the same time lack progress in national or international regulation.
Liability See moreWikipedia text under CC-BY-SA license What is a satellite? - NASA
Sep 5, 2018 · Learn the definition and types of satellites, natural and man-made, and how they orbit and communicate in space. Find out about NASA's missions and satellites that observe …
What Is a Satellite? | NASA Space Place – NASA …
Learn about different types of satellites, how they orbit Earth and other planets, and what they can do. Find out how satellites help us study Earth, the solar system and the universe.
What is a satellite? | Space
See more on space.comFollowing that feat, on Nov. 3, 1957 the Soviets launched an even more massive satellite — Sputnik 2 — which carried a dog, Laika. The United States' first satellite was Explorer 1on Jan. 31, 1958. The satellite was only 2 percent the mass of Sputnik 2, however, at 30 pounds (13 kg). The Sputniks and Explorer 1 b…- Estimated Reading Time: 9 mins
What Is a Satellite? (Grades 5-8) - NASA
Feb 12, 2014 · Learn about satellites, their types, parts, orbits and uses. Find out how satellites help scientists study Earth and space, and see examples of NASA satellites.
How do satellites work? - Explain that Stuff
Jun 6, 2022 · Learn about the different types and uses of satellites, from communications and photography to navigation and weather. Find out how satellites orbit Earth, how they relay signals, and how they help us live within …
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Earth satellite | Definition & Facts | Britannica
Jan 29, 2025 · 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 …
Types of Satellites and Uses of Satellite - BYJU'S
Learn about the natural and man-made satellites of the earth, their characteristics, and applications. Find out how satellites orbit the earth and what velocity is needed for them to do so.
Types Of Satellites By Orbits, Functions, And Practical Uses
Mar 22, 2023 · Learn about the different types of satellites based on their orbits, such as LEO, MEO, GEO, SSO, and GTO, and how they serve various purposes, such as communication, …
Satellite | Orbits, Communication & Navigation
satellite, natural object (moon) or spacecraft (artificial satellite) orbiting a larger astronomical body. Most known natural satellites orbit planets; the Earth’s Moon is the most obvious example. All the planets in the solar system except …
How Satellites Work - HowStuffWorks
Learn how satellites orbit Earth and other planets, and what they do for us. Find out how they are launched, operated, and affected by space debris.
What Is a Satellite? (Grades K-4) - NASA
Feb 8, 2017 · Satellites provide information about Earth’s clouds, oceans, land and air. They also can observe wildfires, volcanoes and smoke. All this information helps scientists predict …
Satellite Basics - Intelsat
Satellites are relay stations in space for the transmission of voice, video and data communications. Learn satellite basics and out how they work in this "101" primer.
What Is a Satellite? - How Satellites Work - HowStuffWorks
Learn what a satellite is, how it orbits a planet and what kinds of satellites exist. Find out how satellites are used for weather, communication, science, navigation, rescue and more.
What is a satellite? - Canadian Space Agency
Learn the basics of satellites, such as their types, components, data, missions, and service life. Find out how satellites observe Earth, explore the universe, and provide communication signals.
Satellites - Space Foundation
5 days ago · Learn about the different types of satellites, their applications and examples, from Earth science to solar system study. Find out how satellites are grouped by weight and what …
ST Engineering To Launch Five New Satellites In ’26-’27
5 days ago · SINGAPORE—ST Engineering is on track to launch at least five new satellites between 2026-2027 as it seeks to solidify its near-equatorial Earth-observation satellite …
How satellites revolutionised climate change science - The …
Feb 19, 2025 · The first satellite of any kind was the USSR’s Sputnik 1, launched in 1957. But it wasn’t until the 1960s that satellites designed specifically to observe the Earth and its climate …
Mass Retirement? SpaceX Spotted Deorbiting Dozens of Starlink …
Jan 30, 2025 · “The satellites will follow a safe, circular, and controlled lowering operation that should take approximately six months for most of the vehicles,” SpaceX said at the time, later …
Thousands of Satellites Shift Position as the Sun Unleashes …
Dec 11, 2024 · One day after the storm, nearly 5,000 satellites, mostly Starlink, performed orbit-raising maneuvers, according to Parker. “This is half of all active satellites deciding to …
NASA to launch space observatory that will map 450 million galaxies
4 days ago · The cone-shaped spacecraft — along with four suitcase-sized satellites that NASA will deploy at the same time on a separate mission to study the sun — will launch atop a …
New technology will help satellites avoid collisions in space
Feb 20, 2025 · Space is becoming more crowded every day, with over 11,000 active satellites and nearly 40,000 pieces of debris in low Earth orbit. But Los Alamos National Laboratory has just …
Will geostationary satellites one day become obsolete given the ...
Feb 1, 2025 · GEO satellites will remain an integral component of satellite networks. There are different advantages to different orbits. Geostationary satellites are by far the most …
New NASA Space Telescope Will See the Universe in 102 Colors
2 days ago · A second NASA mission, composed of four small satellites collectively called Polarimeter to Unify the Corona and Heliosphere, or PUNCH, will hitch a ride with the space …
Wary of China, Vietnam to Buy Two Spy Satellites From Israel
8 hours ago · Observation satellites equipped with cameras and optical equipment are considered spy satellites. The 1967 Outer Space Treaty does not ban spy satellites and touts freedom of …
Geishouse map satellite // France, Alsace - Earth map online service
🌍 map of Geishouse (France / Alsace), satellite view. Real streets and buildings location with labels, ruler, places sharing, search, locating, routing and weather forecast.
Colmar map satellite // France, Alsace - Earth map online service
🌍 map of Colmar (France / Alsace), satellite view. Real streets and buildings location with labels, ruler, places sharing, search, locating, routing and weather forecast.
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