Portal:History of science/Selected anniversaries/August 25
- 1561 - Birth of Philippe van Lansberge, Dutch astronomer (d. 1632)
- 1609 - Galileo Galilei demonstrates his first telescope to Venetian lawmakers
- 1822 - Death of William Herschel, German-born astronomer (b. 1738)
- 1867 - Death of Michael Faraday, English scientist (b. 1791)
- 1898 - Birth of Helmut Hasse, German mathematician (d. 1975)
- 1900 - Birth of Hans Adolf Krebs, German physician and biochemist; Nobel Prize laureate (d. 1981)
- 1908 - Death of Henri Becquerel, French physicist, Nobel laureate (b. 1852)
- 1928 - Birth of Herbert Kroemer, German-born physicist, Nobel Prize laureate
- 1956 - Death of Alfred Kinsey, American research biologist (b. 1894)
- 1964 - Birth of Maxim Kontsevich, Russian mathematician