Editing 1994 in science (section)

==Astronomy and space exploration==
* January 8 – ''[[Soyuz TM-18]]'': [[Valeri Polyakov]] begins his 437.7-day orbit of the [[Earth]], eventually setting the world record for days spent in orbit.
* February 3 – Asteroid [[(136617) 1994 CC]] is discovered.
* February 21 – Revealing of the first photo of [[Pluto]] and its moon [[Charon (moon)|Charon]] taken from the [[Hubble Space Telescope]].
* July 16–22 – The fragments of [[Comet Shoemaker–Levy 9]] impact the planet [[Jupiter]].
* July 21 – R. Ibata, M. Irwin, and G. Gilmore discover the [[Sagittarius Dwarf Elliptical Galaxy]], a satellite galaxy of the [[Milky Way]], considered the closest galaxy to the Milky Way until 2003.<ref>{{cite journal|bibcode=1994Natur.370..194I|title=A dwarf satellite galaxy in Sagittarius|last1=Ibata|first1=R. A.|last2=Gilmore|first2=G.|last3=Irwin|first3=M. J.|volume=370|year=1994|pages=194–196|journal=Nature|doi=10.1038/370194a0|issue=6486|s2cid=4335789 }}</ref>
* October 13 (UTC) – [[NASA]] loses radio contact with the [[Magellan (spacecraft)|''Magellan'' spacecraft]] after a successful mission as the probe descends into the thick atmosphere of [[Venus]] and is presumed to burn up in the atmosphere.
* Asteroid [[7484 Dogo Onsen]] is discovered by [[Masahiro Koishikawa]].
* [[14032 Mego]] is discovered.
* [[8C 1435+63]] is discovered and at z=4.25 becomes the most distant known galaxy.<ref>{{Cite journal|bibcode=1994MNRAS.271..504L|title=8C 1435+635: A radio galaxy at z = 4.25|last1=Lacy|first1=M.|last2=Miley|first2=G.|last3=Rawlings|first3=S.|last4=Saunders|first4=R.|last5=Dickinson|first5=M.|last6=Garrington|first6=S.|last7=Maddox|first7=S.|last8=Pooley|first8=G.|last9=Steidel|first9=C. C.|last10=Bremer|first10=M.N.|last11=Cotter|first11=G.|last12=van Ojik|first12=R.|last13=Röttgering|first13=H.|last14=Warner|first14=P.|volume=271|issue=2|year=1994|pages=504–512|journal=[[Monthly Notices of the Royal Astronomical Society]]|doi=10.1093/mnras/271.2.504 |doi-access=free}}</ref><ref>{{Cite journal |arxiv = astro-ph/9411007|last1 = Spinrad|first1 = Hyron|title = Keck Observations of the Most Distant Galaxy: 8C1435+63 at z=4.25|journal = The Astrophysical Journal|volume = 438|pages = L51|last2 = Dey|first2 = Arjun|last3 = Graham|first3 = James R|year = 1994|doi = 10.1086/187713|bibcode = 1995ApJ...438L..51S| s2cid=37520541 }}</ref>