Essays to write:
- In your own words, explain what you knew about the Big Bang Theory before studying cosmology. Identify and describe three strong pieces of evidence for the Big Bang and rank those pieces of evidence according to how convincing you think they are (use provided video: Crash Course Astronomy: Big BangCosmology to obtain this evidence), and provide a rationale for your response. (500 words)
Other sources:
a. NASA. (2011). Cosmology: The study of the universe.
- NASA. (2012). Big Bang cosmology.
- NASA. (2014). Foundations of Big Bang cosmology.
- In this essay, compare and contrast the life histories of high-mass stars and low-mass stars. How are their histories similar? How and why do they differ? Be sure to consider the full star life cycle, from birth to death. (In addition to the readings and videos, the Star in a Box simulationmay be useful to you as you are crafting your response.) ? (500 words)
Other sources:
https://starinabox.lco.global/
https://openstax.org/books/astronomy/pages/22-thinking-ahead (22.1 to 22.5)
- In this essay, consider how astronomers study galaxies. In your response, address the following questions: (1) How do astronomers study the structure of the Milky Way? What methods and tools do they use, and why? (2) How do astronomers study galaxy formation and evolution? What methods and tools do they use, and why? (3) How do astronomers’ study supermassive black holes and quasars? What methods and tools do they use, and why? (500 words)
Sources
The milky way
https://openstax.org/books/astronomy/pages/1-6-a-tour-of-the-universe
https://openstax.org/books/astronomy/pages/1-7-the-universe-on-the-large-scale
https://openstax.org/books/astronomy/pages/25-thinking-ahead – Sections 25.1 – 25.6
- Locate a recent, credible article (either a peer-reviewed journal article or a news article written within the last year) describing a galaxy-related discovery or finding. Review the article carefully. In your response (400 words) include :
- a summary of the discovery itself, the research that led to the discovery, and why this finding is important (please be sure to write the summary in your own words) and
- a discussion of how this discovery is related to the information in this lesson (see links below). Be specific. Include a complete reference for your selected article.
Links to the lesson:
https://openstax.org/books/astronomy/pages/27-thinking-ahead
https://imagine.gsfc.nasa.gov/science/objects/active_galaxies1.html
https://www.space.com/17262-quasar-definition.html
