No, Mercury does not have any natural satellites. It is the only planet in our solar system that does not.

There have been no robotic missions sent to Mercury specifically to deploy robots or satellites. However, there have been several missions that have flown by Mercury, including:

- Mariner 10 (1974-75)

- MESSENGER (2004-2015)

- BepiColombo (2018-present)

The MESSENGER mission orbited Mercury for several years and conducted extensive scientific observations of the planet. BepiColombo is currently in orbit around Mercury and continuing to study the planet.