Simple text and color photographs offers facts about the size, composition, appearance, and exploration of Mercury.
General Note
Includes an access code for supplemental materials available online.
Content Note
What is Mercury? -- How big is Mercury? -- What is Mercury made of? -- What does Mercury look like? -- What is the Caloris Basin? -- Mercury's missing moon -- Who first studied Mercury? -- How is Mercury different from Earth? -- How do we learn about Mercury today? -- Mercury facts.