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This is an ongoing user project that assists in improving Wikipedia's scope and quality through the preparation, modification and expansion of Wikipedia articles relevant to government, politics, world affairs and general interest. The primary overall focus of this user effort is developing and improving articles relevant to Iowa, Minnesota, North Dakota, South Dakota and Wisconsin government and politics.
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6 November 2024 |
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Cecilia Payne-Gaposchkin (1900–1979) was a British-born American astronomer and astrophysicist who proposed in her 1925 doctoral thesis that stars were composed primarily of hydrogen and helium. Her groundbreaking conclusion was initially rejected because it contradicted the scientific wisdom of the time, which held that there were no significant elemental differences between the Sun and Earth. Independent observations eventually proved she was correct. Her work on the nature of variable stars was foundational to modern astrophysics.Photograph credit: Science Service; restored by Adam Cuerden
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