Fritz Zwicky

1898 - 1974

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Fritz Zwicky (; 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. Read more on Wikipedia

Since 2007, the English Wikipedia page of Fritz Zwicky has received more than 435,604 page views. His biography is available in 45 different languages on Wikipedia (up from 43 in 2019). Fritz Zwicky is the 56th most popular astronomer, the 28th most popular biography from Bulgaria (down from 25th in 2019) and the most popular Bulgarian Astronomer.

Fritz Zwicky is most famous for his discovery of dark matter. In 1933, he observed that the velocities of galaxies in the Coma Cluster were too high to be attributed to the gravitational pull of the cluster. He hypothesized that there must be some unseen matter holding the cluster together.

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Among astronomers, Fritz Zwicky ranks 56 out of 532Before him are Ahmad ibn Muhammad ibn Kathir al-Farghani, Percival Lowell, William Lassell, Ferdinand Verbiest, Max Wolf, and Riccardo Giacconi. After him are Heinrich Louis d'Arrest, Martin Ryle, Friedrich Georg Wilhelm von Struve, Antony Hewish, Gerard Kuiper, and William Alfred Fowler.

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Among people born in 1898, Fritz Zwicky ranks 40Before him are Kenji Mizoguchi, Aloysius Stepinac, Peng Dehuai, Georges Dumézil, Curzio Malaparte, and Princess Charlotte, Duchess of Valentinois. After him are Joseph Murphy, Therese Neumann, Julius Schreck, Josef Terboven, Konrad Henlein, and Vicente Aleixandre. Among people deceased in 1974, Fritz Zwicky ranks 26Before him are Otto Strasser, Miguel Ángel Asturias, David Oistrakh, Louis Kahn, Peng Dehuai, and Satyendra Nath Bose. After him are Walter Lippmann, Zalman Shazar, David Alfaro Siqueiros, Marcel Pagnol, Nikolai Kuznetsov, and Patrick Blackett.

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In Bulgaria

Among people born in Bulgaria, Fritz Zwicky ranks 28 out of 313Before him are Tzvetan Todorov (1939), Ratko Janev (1939), Saint Naum (830), Sylvie Vartan (1944), Hristo Stoichkov (1966), and Kaloyan of Bulgaria (1168). After him are Nicolai Ghiaurov (1929), Ivan Asen II of Bulgaria (1195), Christian Rakovsky (1873), Vlado Chernozemski (1897), Vasil Levski (1837), and Michael Shishman of Bulgaria (1280).

Among ASTRONOMERS In Bulgaria

Among astronomers born in Bulgaria, Fritz Zwicky ranks 1