Sharing of satellites does happen in some senses already. These tend to be large satellites with significant power/data resources that can afford to host an ext

Sharing of satellites does happen in some senses already. These tend to be large satellites with significant power/data resources that can afford to host an extra payload. Some examples: 1. TCTE is a NASA instrument capturing solar radiance data hosted on an Air Force satellite: https://lasp.colorado.edu/home/missions-projects/quick-facts-tcte/ https://lasp.colorado.edu/home/missions-projects/quick-facts... 2. The US military uses bandwidth of commercial communications satellites. Note, the article is actually about how they can't do it very well and want to get better so I will admit this is a bit contradictory to my point. https://spacenews.com/to-predict-the-future-of-military-satellite-communications-follow-the-terminals/ https://spacenews.com/to-predict-the-future-of-military-sate...