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Tag: Andrea Dupree
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Nation & World
Far-out findings from the cosmos
CfA astronomers theorize that the solar system originally had two suns as they further research a sneezing star and ‘Oumuamua.
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Nation & World
Betelgeuse’s chromosphere beats like a human heart
For many years astronomers have known that the atmospheres of pulsating stars either expand or contract over time, but they have long puzzled over the question: “What physical mechanism drives…