How much do we know about the moon? What's the cost of exploring the moon?

• KEY ECONOMIC PRINCIPLES I’M ADDRESSING: Because of scarcity, people choose, All choices have an opportunity cost
• OVERALL RESEARCH QUESTION: How much the government should spend on exploring the universe
• SUB QUESTIONS
• How can we know that, the earth revolves around the sun? Is the sun, center of our solar system?  
• How our planet moves through space?
• What kind of planet is the earth?
•  Moon explorations?
• Missions on the moon?
• RESOURCES FOR RESEARCH:
• DATABASES:
• WEBSITES: "http://natgeo.galegroup.com/natgeo/archive?p=NGMA&u=hins30136" and "http://worldgeography.abc-clio.com/Authentication/PickCustomer?returnAction=%2f&webSiteCode=SLN_WGEO&returnToPage=%2fAuthentication%2fPickCustomer%3freturnAction%3d%252f&token=BE42C0CD
  

  

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