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DECEMBER 2019 | VOLUME 29, NUMBER 12
SCIENCE

4 The Faint Young Sun Problem Revisited
Jon Spencer
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regardless of race, citizenship, gender, sexual orientation, momentum. This type of solar activity was much greater during the Sun’s fast-spinning youth.
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publication do not reflect official positions of the Society. Engineering, Brno University of Technology, Czech Republic. See related article, p. 4–10.
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