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Astronomers Use Data About Stars near the Very Center of the Milky

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Essay

Astronomers use data about stars near the very center of the Milky Way to argue that there must be a supermassive black hole at the center of the galaxy.Describe the method that is used.


Definitions:

Actor-Network Theory

A theoretical and methodological approach to social theory that emphasizes the agency of both human and non-human actors in social systems.

Agency

The capacity of individuals to act independently and make their own free choices, countered by structures in society.

Semiotics of Materiality

The study of how material objects and their use communicate meanings and participate in symbolic systems within a culture.

Essentialist Sense

The belief that categories, especially concerning identity, have an intrinsic essence or set of characteristics inherent to them.

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