Portal:History of science/Selected anniversaries/January 26
- 1630 - Death of Henry Briggs, English mathematician (b. 1556)
- 1697 - Death of Georg Mohr, Danish mathematician (b. 1640
- 1904 - Birth of Ancel Keys, American scientist (d. 2004)
- 1911 - Glenn H. Curtiss flies the first successful seaplane
- 1911 - Birth of Polykarp Kusch, German-born physicist, Nobel Prize Laureate (d. 1993)
- 1942 - Death of Felix Hausdorff, German mathematician (b. 1868)
- 1943 - Death of Nikolai Vavilov, Russian botanist (b. 1887)
- 1946 - Death of Adriaan van Maanen, Dutch-American astronomer (b. 1884)
- 1962 - Ranger program: Ranger 3 is launched to study the moon. The space probe later missed the moon by 22,000 miles (35,400 km)