Find one or more recent article(s) from a reliable website or from a resource found in the APUS Library that discusses one of the following topics; summarize the article and elaborate on the topic:
a. Describe Brown Dwarfs – what are they, why aren’t they classified as stars, what are the three classifications of them, and where do they fit on the H-R diagram.
b. What are “stellar nurseries” and protostars, and what advances have been made in discovering and studying them?
c. Describe galactic cosmic rays and how they factor into long-duration human spaceflight .
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