The Famous Shapley-Curtis Debate in 1920 Concerned Which Fundamental Astronomical

question 56

Multiple Choice

The famous Shapley-Curtis debate in 1920 concerned which fundamental astronomical question in astronomy?

• A) whether all stars were like the Sun or fundamentally different
• B) whether the spiral "nebulae" were part of the Milky Way Galaxy or more distant, separate entities
• C) whether the universe was expanding outward in all directions
• D) whether the Sun was at the center of the Milky Way Galaxy

---

Definitions:

Frotteuristic Disorder

A paraphilic disorder characterized by a strong sexual urge or behavior that involves touching or rubbing against a non-consenting person.

Pedophilic Disorder

A psychiatric disorder characterized by an adult's sexual attraction to prepubescent children, which is considered harmful and is illegal.

Exhibitionists

Individuals who engage in behavior that involves exposing themselves in public to strangers for sexual gratification.

Pedophilic Disorder

A psychiatric disorder characterized by recurrent, intense sexually arousing fantasies, urges, or behaviors involving prepubescent children.