# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/fritz-zwicky
# Generated: 2026-09-07T19:03:56.952Z

schema: https://schema.org/Person
url: "https://fame.am/person/fritz-zwicky"
name: "Fritz Zwicky"
slug: "fritz-zwicky"
description: "Fritz Zwicky 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."
tagline: "Swiss astronomer who posited dark matter (1898–1974)"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/ETH-BIB-Zwicky%2C_Fritz_(1898-1974)-Portr_01030.tif?width=1200"
gender: "male"
country:
  name: "Switzerland"
  isoCode: "CH"
category:
  name: "Scientists"
  slug: "scientists"
profileType:
  name: "Scientist"
  slug: "scientist"
  entityType: "https://www.wikidata.org/entity/Q39631"
birthDate: "1898-02-14"
deathDate: "1974-02-08"
livingStatus: "DECEASED"
scores:
  popularity:           53.92
  momentum:             0
  historical:           23.50260533333334
  currentAttention:     0
  sourceConfidence:     60
  profileCompleteness:  70
  trendDirection:       "FALLING"
ranks:
  global:   null
  country:  null
  category: null
sources:
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    title: "Fritz Zwicky"
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    title: "Fritz Zwicky"
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    title: "Fritz Zwicky"
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    title: "Fritz Zwicky"
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    title: "Fritz Zwicky"
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    title: "Fritz Zwicky"
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    title: "Fritz Zwicky"
    type:  "WIKIPEDIA"
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    title: "Fritz Zwicky"
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    title: "Fritz Zwicky"
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  - url: "https://www.wikidata.org/wiki/Q115462"
    title: "Wikidata"
    type:  "WIKIDATA"

# bio (long form, separated for readability)
bio: |
  Imported from discovery source: wikidata-dump