August 21st, 2020 
Please address the following questions in your own words:
1. Describe 2-3 concepts or ideas that stood out to you as you were reviewing the lesson materials.
2. Describe one of the most important observations that Galileo made using his telescope. Why was this observation so important?
3. In what way(s) did Galileo’s observations and discoveries build on the ideas of his predecessors? When answering this aspect of the discussion question, consider what you learned in Topics 1 and 2 of this lesson.
Answer in 300 words. Cite and reference any sources you use.
References
https://openstax.org/details/books/astronomy
Section 2.4: The Birth of Modern Astronomy
University of Rochester. (n.d.)
http://www.pas.rochester.edu/~blackman/ast104/galileo12.html
Library of Congress. (n.d.) Galileo and the Telescope.
https://www.loc.gov/collections/finding-our-place-in-the-cosmos-with-carl-sagan/articles-and-essays/modeling-the-cosmos/galileo-and-the-telescope/
Posted in 