The redshift surveys of the 1980s
A) determined the velocity of superclusters.
B) were significant in calculating Hubble's constant.
C) measured the distance to thousands of galaxies.
D) definitively proved the Big Bang theory.
E) provided a foundation for planetary exploration.

Question

Quizplus · Accepted Answer

The main goal of the redshift surveys of the 1980s was to measure the redshift (and thus calculate the distance) of thousands of galaxies. This allowed astronomers to create 3D maps of the distribution of galaxies in the universe and study its large-scale structure. While these surveys contributed to our understanding of the expansion rate of the universe (and thus Hubble's constant), they did not definitively prove the Big Bang theory or provide a foundation for planetary exploration. The surveys did not directly determine the velocity of superclusters, but they did provide information about their distribution. Thus, choice C is the best option.

The Redshift Surveys of the 1980s