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Chapter 7: Impact Cratering

Learning Objectives

By reading this chapter, attending lecture, and reviewing lecture content, you will be able to:

  • Define impact cratering and describe the main stages
  • Describe the relationship between escape velocity and impact velocity (on the simplest level)
  • Explain the consequences of impacts behaving like explosions
  • List some products (or evidence) of impact cratering and describe how they form
  • Explain the relationship between crater size and impactor speed, mass, and angle
  • Compare and contrast the different crater morphology categories and discriminate between them in images
  • Define space weathering and how scientists use it to learn about the age of a planetary surface
  • Describe how we are protecting humanity from a future impact event and what we might do to deflect an impending collision
  • Explain how impact craters can be used to determine the age of a planetary surface