Low Earth orbit - Wikipedia
WEBA low Earth orbit (LEO) is an orbit around Earth with a period of 128 minutes or less (making at least 11.25 orbits per day) and an eccentricity less than 0.25. [1]
Low Earth orbit (LEO) | Definition, Distance, & Facts | Britannica
WEB6 days ago · Low Earth orbit (LEO), region of space where satellites orbit closest to Earth’s surface. There is no official definition of this region, but it is usually considered to be between 160 and 1,600 km (about 100 and 1,000 miles) above Earth.
What is low Earth orbit? | Space
WEBMay 30, 2022 · In very simple terms, low Earth orbit (LEO) is exactly what it sounds like: An orbit around the Earth with an altitude that lies towards the lower end of the range of possible orbits.
The Future of Low-Earth Orbit: Evolving Missions and Challenges …
WEB2 days ago · Low Earth Orbit (LEO) is emerging as one of the most dynamic and rapidly evolving regions in space. With increasing commercial interest, government activity, and a flood of new satellites, LEO has become a focal point for communication, Earth observation, and emerging technologies.
Observing our Planet from Low Earth Orbit - NASA
WEBJul 24, 2022 · Station provides a low Earth orbit vantage point for photos supporting global-scale investigations related to the composition, health, and future of Earth
Commercial Space Frequently Asked Questions - NASA
WEBApr 7, 2024 · What is LEO (low Earth orbit)? Low Earth orbit (LEO) encompasses Earth-centered orbits with an altitude of 1,200 miles (2,000 km) or less. This orbit is considered near enough to Earth for convenient transportation, communication, observation, and …
NASA’s Low Earth Orbit Microgravity Strategy
WEB6 days ago · NASA’s Low Earth Orbit (LEO) Microgravity Strategy builds on the agency’s extensive human spaceflight experience to advance future scientific and exploration goals. From Mercury and Gemini to Apollo and the Space Shuttle, NASA’s human spaceflight programs have established a foundation for understanding how humans can live and …
ESA - Low Earth orbit - European Space Agency
WEBMar 2, 2020 · A low Earth orbit (LEO) is, as the name suggests, an orbit that is relatively close to Earth’s surface. It is normally at an altitude of less than 1000 km but could be as low as 160 km above Earth – which is low compared to other orbits, but still very far above Earth’s surface.
Low-Earth Orbit Faces a Spiraling Debris Threat
WEBApr 22, 2024 · Millions of human-made objects travel at high speeds in low-Earth orbit, polluting space and increasing the chance of collision with satellites and other spacecraft
ESA - Spacecraft orbits - European Space Agency
WEBA low-Earth orbit (LEO) is the lowest altitude a spacecraft must achieve to orbit the Earth – at least 160 km. Spacecraft in these orbits circle our planet once every ninety minutes or so. The International Space Station and the Hubble Space Telescope are both in LEO.