Mercury is the closest planet in our Solar System to the Sun. Mercury is a barren, rocky planet that that is littered with craters. The solid ground and low gravity make it ideal for a spaceship landing. The planet to this date has only been visited by two unmanned probes probes.
- Mariner 10 - Historically the first probe to use gravitational assists and first probe to visit Mercury. It made three fly-by's of Mercury between November 1973 and March 1974, but did not enter orbit. This probe is modeled in Orbiter in an add-on made by user "missleman01": GEP - Mariner 10 
- Messenger - Historically the first probe to enter orbit around Mercury. After three fly-by's between January 2008 and September 2009, it entered an highly elliptical orbit around Mercury on March 18th, 2011. This probe is modeled in Orbiter in several add-ons 
- Mercury Level 9 Textures The texture was created using mosaics of the planet Mercury with pictures taken by the MESSENGER spacecraft in 2011
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