Study Plan

Learning Goals

By the conclusion of this chapter, you should be able to:
  1. Explain how astronomers measured the size and structure of the Milky Way.
  2. Describe the environment within the disk of the Milky Way, and the halo of stars, globular clusters, and dark matter that surrounds and permeates the galaxy.
  3. Chart how the chemical composition of the Milky Way has evolved with time.
  4. Explain the evidence for a supermassive black hole at the center of the Milky Way.
  5. Describe the Local Group of galaxies.

Prepare and Assess


    1. Galaxy Interactions and Mergers
      Section: 21.5

Reassess and Apply

  1. Additional comments or issues to report:

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