Ian
priscilla 1Space Junk
September 23rd 2009 11:38
Space Junk is the objects in orbit around Earth created by humans, and that no longer serve any useful purpose. They consist of everything from entire spent rocket stages and defunct satellites to explosion fragments, paint flakes, dust, and slag from solid rocket motors, coolant released by RORSAT nuclear powered satellites, deliberate insertion of small needles, and other small particles. Clouds of very small particles may cause erosive damage, like sandblasting. Space "junk" has become a growing concern in recent years, since collisions at orbital velocities can be highly damaging to functional satellites and can also produce even more space debris in the process. This is called the Kessler Syndrome. Some spacecraft, like the International Space Station, are now armoured to mitigate damage from this hazard. Astronauts on space-walks are also vulnerable
There is a surprising amount of Space Junk in orbit, the infographic below sourced from euinfrastructure.com gives a good overview of the what, where and how of space junk.
*This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article for Space Debris.
There is a surprising amount of Space Junk in orbit, the infographic below sourced from euinfrastructure.com gives a good overview of the what, where and how of space junk.
Click the image to enlarge
*This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article for Space Debris.
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