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  1. Space debris, also called space junk, artificial material that is orbiting Earth but is no longer functional. This material can be as large as a discarded rocket stage or as small as a microscopic chip of paint.

    www.britannica.com/technology/space-debris

    Examples of space debris include derelict satellites and spent rocket stages as well as the fragments from their disintegration, erosion and collisions, such as paint flecks, solidified liquids from spacecraft breakups, and unburned particles from solid rocket motors.

    en.wikipedia.org/wiki/Space_debris
  2. People also ask
    Much of the debris is in low Earth orbit, within 2,000 km (1,200 miles) of Earth’s surface, though some debris can be found in geostationary orbit 35,786 km (22,236 miles) above the Equator. As of 2021, the United States Space Surveillance Network was tracking more than 15,000 pieces of space debris larger than 10 cm (4 inches) across.
    It is estimated that there are about 200,000 pieces between 1 and 10 cm (0.4 and 4 inches) across and that there could be millions of pieces smaller than 1 cm. How long a piece of space debris takes to fall back to Earth depends on its altitude. Objects below 600 km (375 miles) orbit several years before reentering Earth’s atmosphere.
    Space debris, artificial material that is orbiting Earth but is no longer functional. Much of the debris is in low Earth orbit, within 2,000 km (1,200 miles) of Earth’s surface. It is estimated that there are about 200,000 pieces between 1 and 10 cm (0.4 and 4 inches) across.
    The removal of space debris has become an urgent issue as concerns grow about the potential for dangerous collisions amid a growing number of satellites and rockets in the Earth's orbit. Astroscale was founded in 2013 by former Finance Ministry bureaucrat Nobu Okada to offer a commercial service for space debris removal.
  3. Space Debris: A Growing Threat
    Space debris is any human-made object in orbit that is no longer useful, such as discarded rocket stages, satellites, or paint chips.
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  4. Space debris could be dealt with more cheaply than ...

  5. Space debris | Facts, Removal, & Examples | Britannica

  6. NASA Study Provides New Look at Orbital Debris, Potential ...

  7. It’s time to tackle space debris | Nature Physics

  8. There Is Too Much Trash in Space | Scientific American

  9. ESA - Twelve countries sign the Zero Debris Charter

  10. 商業デブリ除去実証フェーズI における軌道上のスペースデブリ ...

  11. Japan startup reveals "world's first" close-up space debris image

  12. JAXA | First target image from orbit: The image of space debris ...

  13. Japan comes face to face with its own space junk - BBC

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