Editing 1989 in science

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{{Year nav topic5|1989|science}}
{{Science year nav|1989}}

The year '''1989 in science''' and technology involved many significant events, some listed below.

==Astronomy==
* August – [[Asteroid]] [[4769 Castalia]] is the first asteroid directly imaged, by radar from [[Arecibo]].
* August 25 – The ''[[Voyager 2]]'' spacecraft makes its closest approach to [[Neptune]], providing definitive proof of [[Rings of Neptune|the planet's rings]].
* September 5 – [[Pluto]]–[[Charon (moon)|Charon]] [[Earth-Moon barycenter|barycentre]] comes to [[Apsis|perihelion]].<ref>{{cite web|title=Horizon Online Ephemeris System for Pluto Barycenter|publisher=[[JPL Horizons On-Line Ephemeris System]] @ Solar System Dynamics Group|url=http://ssd.jpl.nasa.gov/horizons.cgi?find_body=1&body_group=mb&sstr=9|accessdate=January 16, 2011}}</ref>
*[[5128 Wakabayashi|Asteroid 5128 Wakabayashi]] is discovered by [[Masahiro Koishikawa]].
*[[4292 Aoba]] is discovered.
*[[4871 Riverside]] is discovered.
*[[6089 Izumi]] is discovered.
*[[6190 Rennes]] is discovered
*[[8084 Dallas]] is discovered.

==Biology==
* Discovery of the [[cystic fibrosis]] [[Cystic fibrosis transmembrane conductance regulator|trans-membrane conductance regulator]] gene.<ref>{{cite journal|url=https://www.science.org/doi/10.1126/science.2772657|title=Identification of the cystic fibrosis gene: chromosome walking and jumping|journal=Science|date=8 September 1989|doi=10.1126/science.2772657 |accessdate=30 October 2013|last1=Rommens |first1=Johanna M. |last2=Iannuzzi |first2=Michael C. |last3=Kerem |first3=Bat-Sheva |last4=Drumm |first4=Mitchell L. |last5=Melmer |first5=Georg |last6=Dean |first6=Michael |last7=Rozmahel |first7=Richard |last8=Cole |first8=Jeffery L. |last9=Kennedy |first9=Dara |last10=Hidaka |first10=Noriko |last11=Zsiga |first11=Martha |last12=Buchwald |first12=Manuel |last13=Tsui |first13=Lap-Chee |last14=Riordan |first14=John R. |last15=Collins |first15=Francis S. |volume=245 |issue=4922 |pages=1059–1065 |pmid=2772657 |bibcode=1989Sci...245.1059R |url-access=subscription }}</ref>
* The New Zealand [[Department of Conservation (New Zealand)|Department of Conservation]] begins to implement a [[Kākāpō]] Recovery Plan.<ref>{{cite book|last=Powlesland|first=R. G.|year=1989|title=Kakapo Recovery Plan 1989–1994|publisher=Department of Conservation|location=Wellington}}</ref>

==Computer science==
* March 12 – [[Tim Berners-Lee]] submits a memorandum, titled "Information Management: A Proposal", to the management at [[CERN]] for a system that would eventually become the [[World Wide Web]].
* June 8 – [[GNU Bash]] is released.<ref name=BashBeta>
{{Cite newsgroup
  | title = Bash is in beta release!
  | author = Brian Fox (forwarded by Leonard H. Tower Jr.)
  | date = June 8, 1989
  | newsgroup = gnu.announce
  | url = https://groups.google.com/group/gnu.announce/msg/a509f48ffb298c35?hl=en
  | accessdate = October 28, 2010
}}
</ref>
* July 26 – A federal [[grand jury]] indicts [[Cornell University]] student [[Robert Tappan Morris, Jr.]] for releasing a [[computer virus]], making him the first person to be prosecuted under the 1986 [[Computer Fraud and Abuse Act]] in the [[United States]].

==Environment==
* The global concentration of [[carbon dioxide in Earth's atmosphere]] reaches 350 ppm (parts per million) by volume.

==Physics==
* January – [[Supplee's paradox]] is published.<ref>{{cite journal|first=James M.|last=Supplee|year=1989|title=Relativistic buoyancy|journal=[[American Journal of Physics]]|volume=57|issue=1|pages=75–77|doi=10.1119/1.15875|issn=0002-9505|bibcode=1989AmJPh..57...75S}}</ref>
* March 23 – [[Stanley Pons]] and [[Martin Fleischmann]] announce [[cold fusion]] at the [[University of Utah]].

==Physiology and medicine==
* ''The Oxford Database of Perinatal Trials'' begins publishing online.<ref>{{cite web|title=About the Cochrane Library|url=http://www.thecochranelibrary.com/view/0/AboutTheCochraneLibrary.html#ABOUT|publisher=The [[Cochrane Library]]|accessdate=January 25, 2011|archiveurl=https://web.archive.org/web/20110105124021/http://www.thecochranelibrary.com/view/0/AboutTheCochraneLibrary.html#ABOUT|archivedate=2011-01-05|url-status=dead}}</ref>
* The [[hepatitis C virus]] (HCV) is first identified by [[Michael Houghton (virologist)|Michael Houghton]] and his team.

==Technology==
* July 17 – The [[Northrop Grumman B-2 Spirit]] "[[Stealth aircraft|Stealth]] [[Strategic bomber|Bomber]]" aircraft, developed for the [[United States Air Force]], first flies.<ref>{{cite book|last=Lambert|first=Mark|title=Jane's All The World's Aircraft 1990–1991|location=Coulsdon, UK|publisher=Jane's Defence Data|year=1990|isbn=978-0-7106-0908-3}}</ref>
* [[Isamu Akasaki]] produces the first [[Gallium nitride]] p-n junction blue/UV [[light-emitting diode]].

==Awards==
* [[Nobel Prize]]s
** [[Nobel Prize in Physics|Physics]] – [[Norman F. Ramsey]], [[Hans G. Dehmelt]], [[Wolfgang Paul]]
** [[Nobel Prize in Chemistry|Chemistry]] – [[Sidney Altman]], [[Thomas R. Cech]]
** [[Nobel Prize in Physiology or Medicine|Medicine]] – [[J. Michael Bishop]], [[Harold E. Varmus]]
* [[Turing Award]] –  [[William Kahan|William (Velvel) Kahan]]

==Births==
* May 9 – [[Katie Bouman]], American computer imaging scientist

==Deaths==
* February 27 – [[Konrad Lorenz]] (born [[1903 in science|1903]]), Austrian [[zoologist]].
* March 18 – Sir [[Harold Jeffreys]] (born [[1891 in science|1891]]), English [[mathematician]].
* April 24 – [[Horace Hodes]] (born [[1907 in science|1907]]), American medical researcher.
* August 10 – [[Isabella Forshall]] (born [[1900 in science|1900]]), English [[pediatric surgeon]].
* August 12 – [[William Shockley]] (born [[1910 in science|1910]]), American [[physicist]].
* August 20 – [[George Adamson]] (born [[1906 in science|1906]]), British [[wildlife conservation]]ist.
* August 29 – Sir [[Peter Scott]] (born [[1909 in science|1909]]), English wildlife conservationist.
* October 11 – [[M. King Hubbert]] (born [[1903 in science|1903]]), American [[geophysicist]].
* October 28 – [[Louise Hay (mathematician)|Louise Hay]] (born [[1935 in science|1935]]), French-born American mathematician; breast cancer.
* December 14 – [[Andrei Sakharov]] (born [[1921 in science|1921]]), Soviet Russian [[Nuclear physics|nuclear]] [[physicist]] and political dissident.

==References==
{{reflist}}

[[Category:1989 in science| ]]
[[Category:20th century in science]]
[[Category:1980s in science]]