Describe How Gravitational Lensing Works

question 61

Essay

Describe how gravitational lensing works. What can it tell us about a quasar? What can it tellus about the galaxy that is doing the lensing? How is lensing valuable to the study of darkmatter?

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Definitions:

American Sentiment

Refers to the collective attitudes, feelings, or opinions of the American people, often in the context of patriotism or national issues.

Truman Administration

The period of U.S. presidency under Harry S. Truman, from 1945 to 1953, notable for its implementation of the Marshall Plan, the establishment of NATO, and the beginning of the Cold War.

Berlin Airlift

A military operation in 1948-1949 where Western allies supplied West Berlin by air during the Soviet blockade.

Soviet Union

A federal socialist state in Eurasia that existed from 1922 to 1991, composed of multiple republics, and a principal actor in the Cold War.