Satellite collision - Wikipedia
Strictly speaking, a satellite collision is when two satellites collide while in orbit around a third, much larger body, such as a planet or moon. This definition is typically loosely extended to include collisions between sub-orbital or escape-velocity objects with an object in orbit.
Earth's Orbit Is so Crowded There Are 1,000 Collision Warnings …
2024年12月25日 · Space junk has filled up so much of Earth's orbit that it's endangering satellites and astronauts. The company Kayhan Space issues roughly 1,000 space-collision warnings per day....
A satellite collision catastrophe is now inevitable, experts warn
In the first half of 2024, satellites belonging to SpaceX’s Starlink fleet performed almost 50,000 collision-avoidance manoeuvres. This reflects the number of satellites orbiting Earth and …
Space debris: A Quantitative Analysis Of The In-orbit Collision Risk ...
2023年7月2日 · Using this model proposed by the UMA, it is estimated that space debris would rise by 25,500,000 fragments larger than 1 centimeter, thus increasing the probability of collision and the number of...
SpaceX Starlink satellites had to make 25,000 collision-avoidance ...
2023年7月6日 · SpaceX's Starlink broadband satellites were forced to swerve more than 25,000 times between Dec. 1, 2022, and May 31, 2023 to avoid potentially dangerous approaches to other spacecraft and...
Performing evasive maneuvers increases satellites' collision risk …
2023年12月11日 · Researchers have found that trying to avoid collisions in orbit increases the risk of future collisions in the aftermath of each avoidance maneuver. The reason? Current methods of space traffic...
Monitoring space traffic - MIT News
2025年1月8日 · The European Space Agency has estimated that there are roughly 11,500 satellites in orbit (2,500 of which are not active) and over 35,000 pieces of debris larger than 10 centimeters. Last February, there was a near-collision — missing by only 33 feet — between a NASA satellite and a non-operational Russian spy satellite.
‘Tragedy of the commons’ in space: We need to act now to …
2024年12月13日 · Related: SpaceX Starlink satellites made 50,000 collision-avoidance maneuvers in the past 6 months. What does that mean for space safety What does that mean for space safety RELATED STORIES:
The world must cooperate to avoid a catastrophic space collision
2021年8月11日 · If governments and companies around the world do not take urgent action to work together to make space safer, they will one day face a catastrophic collision that knocks out one or more...
ESA - About space debris - European Space Agency
The first-ever accidental in-orbit collision between two satellites occurred at 16:56 UTC, 10 February 2009, at 776 km altitude above Siberia. A privately owned American communication satellite, Iridium-33, and a Russian military satellite, Kosmos2251, collided at 11.7 km/s.