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"Astronauts" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure, which enables searching at various levels of specificity.

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Members of spacecraft crew including those who travel in space, and those in training for space flight.

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This graph shows the total number of publications written about "Astronauts" by people in this website by year, and whether "Astronauts" was a major or minor topic of these publications.
To see the data from this visualization as text, click here.