* Astronomy

The 1700 Cascadia earthquake occurred in the Cascadia subduction zone on January 26, 1700.
http://astronomy.activeboard.com/t3506502/cascadia-tsunamis/

In January 26th 1531, the Tagus River Estuary was hit by a strong earthquake
http://astronomy.activeboard.com/t40745133/tagus-river-estuary-earthquake-1531/

The lowest barometric pressure recorded in Britain was 925.6mb at Ochertyre, near Crieff, Perthshire on the 26th January 1884
https://forum.netweather.tv/topic/48934-the-lowest-pressure-reading-recorded-in-the-uk/

Mario Runco, Jr. (born January 26, 1952), is a former United States Navy officer and NASA astronaut.
http://en.wikipedia.org/wiki/Mario_Runco,_Jr.

Laurence Carbee Craigie (January 26, 1902 - February 27, 1994), was a United States aviator
http://en.wikipedia.org/wiki/Laurence_Cardee_Craigie

Elizabeth "Bessie" Coleman (January 26, 1892 - April 30, 1926) was an American civil aviator.
http://en.wikipedia.org/wiki/Bessie_Coleman

Polykarp Kusch (January 26, 1911 - March 20, 1993) was a German-American physicist
http://en.wikipedia.org/wiki/Polykarp_Kusch

Gleb Vladimirovich Nosovsky or Nosovskiy (born 26 January 1958) is a Russian mathematician. 
http://en.wikipedia.org/wiki/Gleb_Vladimirovich_Nosovsky

Charles Albert Murdock (1841-1928) is known to us today primarily for a memoir and for his fine printing.
http://en.wikipedia.org/wiki/Charles_Albert_Murdock

Paul the Octopus (26 January 2008 - 26 October 2010) was a common octopus from Weymouth, England.
http://en.wikipedia.org/wiki/Paul_the_Octopus

Michael Bentine CBE (26 January 1922 - 26 November 1996) was a British comedian
http://astronomy.activeboard.com/t52400689/michael-bentine-1922-1996/

Niccolò Cacciatore (26 January 1770 - 28 January 1841) was an Italian astronomer
http://en.wikipedia.org/wiki/Niccol%C3%B2_Cacciatore

Eric Mervyn Lindsay (26 January 1907 - 27 July 1974) was an Irish astronomer.
http://en.wikipedia.org/wiki/Eric_Mervyn_Lindsay

Leo Goldberg (26 January 1913 - 1 November 1987) was an American astronomer
http://en.wikipedia.org/wiki/Leo_Goldberg

Screamers (1995 film) was released in the United States on January 26, 1996
http://astronomy.activeboard.com/t54893296/screamers/

The first season of Babylon 5 premièred in the US on January 26, 1994

Spoiler

http://en.wikipedia.org/wiki/Babylon_5

Star Trek: "Tomorrow Is Yesterday" was first broadcast on January 26, 1967

Spoiler

Supernova 1909A, was discovered by Max Wolf on 26 January 1909 and reached magnitude 12.1
http://en.wikipedia.org/wiki/Pinwheel_Galaxy#Supernova

Supernova 2000E was discovered on January 26 in the spiral galaxy NGC 6951
http://www2.arnes.si/~gljsentvid10/sn_sen.html

Jupiter gas giant HD 152079 b was discovered on January 26, 2010
http://en.wikipedia.org/wiki/HD_152079_b

The likely gas giant HD 86226 b was discovered on January 26, 2010
http://en.wikipedia.org/wiki/HD_86226_b

The eccentric Jupiter gas giant HD 129445 b was discovered on January 26, 2010
http://en.wikipedia.org/wiki/HD_129445_b

The dwarf planet Haumea, nicknamed "Rudolph" by the Caltech team, was discovered January 26, 2005
http://en.wikipedia.org/wiki/Haumea_(dwarf_planet)

Hi'iaka a satellite of Haumea was discovered on January 26, 2005
http://en.wikipedia.org/wiki/Hi%27iaka_(moon)

Large main-belt asteroid 159 Aemilia was discovered on January 26, 1876
http://en.wikipedia.org/wiki/159_Aemilia

Perihelion passage of Halley's Comet on the 26th January, 66AD
http://www.youtube.com/watch?v=aMO4jLW6psU

Charles Messier discovered Comet C/1760 B1 (Messier) on January 26.
http://astronomy.activeboard.com/t56482274/comet-c1760-b1-messier/

Bright Fireball, Jan 26, 1934
http://astronomy.activeboard.com/t56484204/fireball-january-26-1934/