Editing 1741 in science (section)

==Astronomy==
* August 29 – [[Pluto]] (not known at the time) reached [[perihelion]] (closest approach to the Sun).
* December 11 – a "Fire-ball" and explosion heard over southern England, about 11 a.m. "a countryman ... saw a flash of Lightning Before he heard the Noise ... The sound was double ... a Ball of Fire ... took its Course to the East ... over Westminster ... it divided into Two Heads [and] left a Train of Smoke ... which continued ascending for 20 minutes".<ref>''[[Philosophical Transactions of the Royal Society]]''.</ref> The description is reminiscent of the [[Chelyabinsk meteor]] of 2013.
* [[Anders Celsius]] establishes the [[Uppsala Astronomical Observatory]].
* [[Pehr Wilhelm Wargentin]] publishes his first paper on the [[moons of Jupiter]], in the ''Acta'' of the [[Royal Society of Sciences in Uppsala]].
* [[Edmund Weaver (astronomer)|Edmund Weaver]] publishes ''The British Telescope: Being an [[Ephemeris]] of the Coelestial Motions''.
[[Image:UppsalaCelsiusObservatory Busser.jpg|thumb|200px|right|[[Uppsala Astronomical Observatory]] from a contemporary engraving.]]