1. JKoetsier Elon Musk's 42 000 starlink satellites could just save the world 2020 https://www.forbes.com/sites/johnkoetsier/2020/01/09/elon-musks-42000-starlink-satellites-could-just-save-the-world/?sh=425964cb4c2c(accessed: Jan 2021).
2. Amazon.com Inc. Amazon receives FCC approval for project kuiper satellite constellation 2020 https://www.aboutamazon.com/news/company-news/amazon-receives-fcc-approval-for-project-kuiper-satellite-constellation(accessed: March 2021).
3. Department for Business Energy & Industrial Strategy and Agency UK government secures satellite network oneweb 2020 https://www.gov.uk/government/news/uk-government-secures-satellite-network-oneweb(accessed: March 2021).
4. Anonymous Starlink satellite dimension estimates 2020 https://lilibots.blogspot.com/2020/04/starlink-satellite-dimension-estimates.html(accessed: Dec 2020).
5. NASA Nasa's lunar exploration program overview (artemis plan) 2020 https://www.nasa.gov/sites/default/files/atoms/files/artemis_plan-20200921.pdf(accessed: March 2021).