When the Enhance Ability icon is lit in the lower right side of your satellite, this means the planet and the satellite are an ideal match! In this case, the satellite will be able to start using its special ability with this planet (as seen in the image below).
As for what kind of special abilities the different satellites have, they can be divided into the categories below:
- Increase a planet's population
- Extend a planets operational time
- Reduce a planet's food needs
- Extend a planet's happiness