Unemployed Philosophers Guild Here are two gorgeous Moon portraits-the "magnificent desolation" of the Near Side and the mysterious terrain of Far Side. When the mug is cold, you see the Moon(s) against a sea of black. Add a steaming beverage and watch the mug transform, revealing the names of Apollo missions, astronauts, landing sites, and milestones. • 14 oz. Ceramic coffee cup with a comfortable handle. • All of our disappearing mugs come in a beautifully designed, colorful box. • Heat activated color changing mugs are microwave safe, but not dishwasher safe. Hand wash only. Don't soak. • UPG is a novelty gift company specializing in smart and funny gifts. Check out our shop for all types of quirky fun stuff!