| This article is about the planet. For the Goa'uld, see Mars. |
Mars is the fourth planet in the Solar system. Martin Lloyd's people's ship, was in orbit around Mars for five years. (SG1: "Wormhole X-Treme!")
Colonel Jack O'Neill had a picture of the planet in his house. (SG1: "Lost City, Part 2")
Major Samantha Carter had a picture of the planet in her old room at home. (SG1: "The Devil You Know")