What is the surface temperature of Mercury? How many known satellites does Neptune have? What is the Kuiper Belt? Are there other dwarf planets besides Pluto? Answers to these and other questions about our solar system can be found in this jam-packed 2-panel (4-page) guide. Comprehensive, up-to-date factsas well as full-color illustrationsabout planets and other solar system objects are featured in our easy-to-use format.

Topics covered include:
What Is Our Solar System?
Essential Terms
What Else Orbits the Sun?
What Does the Sun Orbit?
What Is a Planet/Dwarf Planet?
Planet & Solar System Object Facts
Astronomical Units
Comparing Planets
Gravity & Weight
The Earth/Sun Relationship
And more!