https://spacenews.com/breakup-of-chinas-yunhai-1-02-satellite-linked-to-space-debris-collision 

https://cjil.uchicago.edu/print-archive/regulating-space-commons-treating-space-debris-abandoned-property-violation-outer 

https://earthobservatory.nasa.gov/features/OrbitsCatalog 

https://www.theguardian.com/science/2022/apr/21/mind-satellite-mission-clean-up-dangerous-space-junk-astronauts-debris 

https://www.theguardian.com/science/2008/feb/21/spaceexploration.usa 

https://clearspace.today/clearspace-secures-a-major-uk-contract-to-help-clean-up-space/ 

https://theconversation.com/space-is-getting-crowded-with-satellites-and-space-junk-how-do-we-avoid-collisions-215545