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Employing Hubble's law, calculate the distance to the Andromeda Galaxy, which is approaching at
110 km/s.The directly measured distance to Andromeda is 2.5 million light-years.How do the two numbers agree or disagree? Explain.
Space Program
A national or international research campaign dedicated to space exploration, technological development, and discovering more about the universe beyond Earth.
1960s
A decade marked by significant cultural, political, and social changes worldwide, including the civil rights movement, the Vietnam War, and the counterculture revolution.
Post-Cold War
The period following the end of the Cold War, marked by significant geopolitical shifts, the dissolution of the Soviet Union, and changes in global power dynamics.
International Crisis
A situation of global scale where political, military, economic, or social problems threaten the stability of one or more nations.
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