Editing 1903 in science (section)

==Aeronautics==
[[File:First flight2.jpg|thumb|325px|December 17 – [[Wright brothers]]' first flight]]
* June 27–19-year-old American socialite [[Aida de Acosta]] becomes the first woman to fly a powered aircraft solo when she pilots [[Alberto Santos-Dumont|Santos-Dumont]]'s motorized [[dirigible]], "No. 9", from Paris to [[Château de Bagatelle]] in France.<ref>{{cite web|url=https://www.fhwa.dot.gov/ohim/wmntrans2.pdf|title=Women in Transportation – Changing America's History: Reference Materials|publisher=[[United States Department of Transportation]]|page=10 |access-date=2012-08-21 |date=March 1998}}</ref>
* December 17 – First documented, successful, controlled, powered flight of a heavier-than-air [[aircraft]] with a [[petrol engine]] by [[Orville Wright]] in the ''[[Wright Flyer]]'' at [[Kill Devil Hills, North Carolina]].
* [[Konstantin Tsiolkovsky]] begins a series of papers discussing the use of [[liquid fuel]] [[rocket]]s to reach outer space, [[space suit]]s, and colonization of the [[Solar System]].