[[https://interestingengineering.com/science/low-earth-orbit-significant-spacecraft|Low Earth orbit: Seven significant spacecraft that lie in low Earth orbit]]


[[https://www.youtube.com/watch?v=qs2QcycggWU|How Exactly does Starlink Satellite Internet Work?]]

[[https://en.wikipedia.org/wiki/KH-11_KENNEN|
KH-11 KENNEN]]