To Map Out How Clusters of Galaxies Are Distributed in the Universe

question 24

Multiple Choice

To map out how clusters of galaxies are distributed in the universe, astronomers needed to know where each cluster was in the sky AND

• A) how many galaxies were in each cluster
• B) how blue or red the galaxies in each cluster were
• C) how far away from us each cluster was
• D) whether any of the galaxies in each cluster acted like quasars
• E) whether any gravitational lensing could be seen in each cluster

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Definitions:

Resident Assistant

A trained peer leader who supervises and assists residents, particularly in college dormitories, with daily life and activities.

Empathy

Understanding and having compassion for others.

Sympathy

A feeling of pity or sorrow for the distress of others; understanding or empathizing with someone else's emotional experiences.

Sexual Harassment

Unwanted sexual advances, requests for sexual favors, and other verbal or physical harassment of a sexual nature.