1. Mercury

2. Profile
 Mass: 330,104,000,000,000 billion kg (.0055 x Earth)
 Equatorial Diameter: 4,879
 Polar Diameter: 4,879
 Known moons: none
 Surface temperature: -173 to 427°C

3. Size compared to the Earth

4. Fun Facts
 Closest planet to the sun
 One year in Mercury is just 88 days
 Most cratered planet in the Solar System
 Two spacecraft have visited Mercury