Swiss astronomer who posited dark matter (1898–1974)
Fritz Zwicky was a Swiss astronomer who, in the early 20th century, proposed the existence of dark matter—invisible material that makes up a significant portion of the universe—based on his observations of galaxy clusters. His work matters because it laid the foundation for one of modern astronomy's biggest unsolved mysteries: understanding what dark matter is and how it shapes the structure of the cosmos.
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5 total works indexed
· 2015 · cited 17,400x
· 1958 · cited 9,614x
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· 2007 · cited 4,990x
Fritz Zwicky (/ˈtsvɪki/; German: [ˈtsvɪki]; February 14, 1898 – February 8, 1974) was a Swiss astronomer. He worked most of his life at the California Institute of Technology in the United States of America, where he made many important contributions in theoretical and observational astronomy. He was the first to propose supernovas as giant explosions at the end of a star's life, and neutron stars as the remnants left over after supernovas. In 1933, Zwicky proposed that unseen dark matter would explain the much higher mass required to explain velocity dispersion in the Coma Cluster, compared to mass calculated from luminosity data.
Biography
· 2013 · cited 4,952x
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