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New oral histories: The discovery of the first exoplanets — AIP History Weekly Edition

Revision f50b67f0-515a-447e-ba5c-61f69080aee5 · 11/5/2026, 10:48:16 PM UTC
Key
charbonneau2026pulsar
Authors
Charbonneau, Rebecca
Issued
2026-5-29
Type
webpage
Container
AIP History Weekly Edition
Publisher
American Institute of Physics
Raw CSL JSON
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  "URL": "https://www.aip.org/history/new-oral-histories-the-discovery-of-the-first-exoplanets-may-29-2026",
  "type": "webpage",
  "title": "New oral histories: The discovery of the first exoplanets",
  "author": [
    {
      "given": "Rebecca",
      "family": "Charbonneau"
    }
  ],
  "issued": {
    "date-parts": [
      [
        2026,
        5,
        29
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  },
  "accessed": {
    "date-parts": [
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  "publisher": "American Institute of Physics",
  "container-title": "AIP History Weekly Edition"
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Claims

  1. Three years before 51 Pegasi b, Alex Wolszczan (Arecibo Observatory) and Dale Frail (National Radio Astronomy Observatory) announced two Earth-mass planets orbiting the millisecond pulsar PSR B1257+12; the results were presented in January 1992 at an American Astronomical Society meeting in Atlanta.
  2. A 2025 review found only eight confirmed pulsar planets around six pulsars, and several large surveys searching for more have come up empty.
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