Technical Topics > Propagation

Three Cheers...

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sat_dxer:
Though the dots that represent objects in space swarm around the Earth, the space junk situation is not as dire as it may appear. The dots are not to scale, and space is a very big place.

https://earthobservatory.nasa.gov/images/40173/space-debris

UncleJohn:

--- Quote from: sat_dxer on February 11, 2022, 2100 UTC ---                                       and space is a very big place.
--- End quote ---
Awesome 8)
                       
                                            ::)  And Our Atmosphere Is Very Thin  ::)


    I just noticed the article specifically states it has not been updated since originally published-2009. (I'm paraphrasing).

ChrisSmolinski:
The Kessler syndrome (also called the Kessler effect, collisional cascading, or ablation cascade), proposed by NASA scientist Donald J. Kessler in 1978, is a scenario in which the density of objects in low Earth orbit (LEO) due to space pollution is high enough that collisions between objects could cause a cascade in which each collision generates space debris that increases the likelihood of further collisions. In 2009 Kessler wrote that modeling results had concluded that the debris environment was already unstable, "such that any attempt to achieve a growth-free small debris environment by eliminating sources of past debris will likely fail because fragments from future collisions will be generated faster than atmospheric drag will remove them".  One implication is that the distribution of debris in orbit could render space activities and the use of satellites in specific orbital ranges difficult for many generations.

https://en.wikipedia.org/wiki/Kessler_syndrome

UncleJohn:
UmKay, one more thought 'bout Mr. Musk's "accidental" contribution...could a Mal-ware Hacker (Choose your favorite country/UNo what Eye mean!  :-X ) possibly have contributed to the "accident"? Just a suggestion? 

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