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Why did Hubble think the Cepheid variables he saw in "Fuzzy Patches" were outside the Milky Way?
Contemporary Scientists
Denotes scientists who are currently active or who have contributed to their respective fields in the recent past.
Mathematical Terms
Symbols, expressions, and equations used to describe quantities, relationships, properties, and operations within the field of mathematics.
Laypeople
Individuals who are not professional or experts in a particular field, often used in religious contexts to refer to non-clergy members.
Descartes
René Descartes, a 17th-century French philosopher known for his statement "Cogito, ergo sum" and contributions to modern philosophy and mathematics.
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