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Why do white-dwarf supernovae all have the same maximum luminosity?
George F. Kennan
An American diplomat and historian known for his influence on U.S. foreign policy, particularly his advocacy of the "containment policy" during the Cold War.
National Security Council
A U.S. executive agency responsible for advising the President on national security and foreign policies.
Traditional Isolationism
A foreign policy stance wherein a nation avoids involvement in the affairs and conflicts of other nations while focusing on its own development and issues.
International Conflict
Disputes between countries or nations that can range from diplomatic disagreements to armed warfare.
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