Read Chapter 1 of your textbook
Expand your horizons, visit this site for an excellent overview of the solar system, including its origins:
Visit this site to create an image of any planet or moon as viewed from another body, using the Solar System Simulator (NASA):
Visit this site to have a better view of the planetary system:
The resident population of the United States
large, connected dome structures that house the Eden Project's many plants
and exhibits. Photo courtesy Apex Photo Agency, Photographer Simon Burt..