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Thales of Miletus (634-546 BC)
- English
URL: http://www.treasure-troves.com/bios/Thales.html
shown in filters: Personalia Greek philosopher who is considered the founder of Greek science, mathematics, and philosophy. [ eng ] |

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Sullivan, Woodruff (b. 1944)
- English
URL: http://www.treasure-troves.com/bios/Sullivan.html
shown in filters: Personalia American astronomer and historian of radio astronomy. [ eng ] |

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Struve, Otto (1897-1963)
- English
URL: http://www.treasure-troves.com/bios/Struve.html
shown in filters: Personalia Russian-American astronomer who discovered interstellar calcium and hydrogen. [ eng ] |

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Smith, F. Graham (b. 1923)
- English
URL: http://www.treasure-troves.com/bios/SmithGraham.html
shown in filters: Personalia Radio astronomer. [ eng ] |

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Slipher, Vesto (1875-1969)
- English
URL: http://www.treasure-troves.com/bios/Slipher.html
shown in filters: Personalia American astronomer . He was the first to obtain good photographs of Mars. [ eng ] |

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Shapley, Harlow (1885-1972)
- English
URL: http://www.treasure-troves.com/bios/Shapley.html
shown in filters: Personalia American astronomer who discovered the galactic distance scale . [ eng ] |

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Schwarzschild, Karl (1873-1916)
- English
URL: http://www.treasure-troves.com/bios/Schwarzschild.html
shown in filters: Personalia, Chats and Forums German astronomer and physicist who developed the use of photography for measuring variable stars. [ eng ] |

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Scheuer, Peter (b. 1930)
- English
URL: http://www.treasure-troves.com/bios/Scheuer.html
shown in filters: Personalia German astronomer .
[ eng ] |

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Salomonovich, Alexander (b. 1916)
- English
URL: http://www.treasure-troves.com/bios/Salomonovich.html
shown in filters: Personalia Russian radio astronomer . [ eng ] |

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Sandage, Allan (b. 1926)
- English
URL: http://www.treasure-troves.com/bios/Sandage.html
shown in filters: Personalia American astronomer who has made numerous observations to attempt to fix the value of the Hubble constant. [ eng ] |

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Sagan, Carl (1934-1996)
- English
URL: http://www.treasure-troves.com/bios/Sagan.html
shown in filters: Personalia American astronomer, author, and popularizer of science and astronomy. [ eng ] |

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Ryle, Sir Martin (1918-1984)
- English
URL: http://www.treasure-troves.com/bios/RyleMartin.html
shown in filters: Personalia English radio astronomer . [ eng ] |

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Gold, Thomas (1920)
- English
URL: http://www.treasure-troves.com/bios/Gold.html
shown in filters: Personalia Austrian-British-American astronomer .
He proposed that matter was continuously created in the expanding universe to keep the density constant (the Bondi-Gold steady-state cosmological model ). [ eng ] |

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Halley, Edmund (1656-1742)
- English
URL: http://www.treasure-troves.com/bios/Halley.html
shown in filters: Personalia English astronomer who discavery the comet of Halley , which he predicted would return again around 1758. [ eng ] |

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Huggins, William (1824-1910)
- English
URL: http://www.treasure-troves.com/bios/HugginsWilliam.html
shown in filters: Personalia English astronomer who built a private observatory from which he studied spectra of nebulae, stars, planets, comets. [ eng ] |

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Piazzi, Giuseppe (1746-1826)
- English
URL: http://www.treasure-troves.com/bios/Piazzi.html
shown in filters: Personalia Italian astronomer who mapped the positions of 7,646 stars and discovered first asteroid. [ eng ] |

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Ritchey, Georg (1864-1945)
- English
URL: http://www.treasure-troves.com/bios/Ritchey.html
shown in filters: Personalia American astronomer who has built several telescopes. [ eng ] |

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Riccioli, Giovanni (1598-1671)
- English
URL: http://www.treasure-troves.com/bios/Riccioli.html
shown in filters: Personalia Italian astronomer and follower of the Ptolemaic system . [ eng ] |

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Rheticus (1514-1574)
- English
URL: http://www.treasure-troves.com/bios/Rheticus.html
shown in filters: Personalia Austrian mystic and Copernicus's only student and spokesman
who published a popularization of Copernicus's theories . [ eng ] |

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Regiomontanus (1436-1476)
- English
URL: http://www.treasure-troves.com/bios/Regiomontanus.html
shown in filters: Personalia German name: Johann Müller. German astronomer who revised the Alfonsine tables . [ eng ] |

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