1989 in science
From Wikipedia, the free encyclopedia
The year 1989 in science and technology involved many significant events, some listed below.
- 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 the planet's rings.
- September 5 – Pluto–Charon barycentre comes to perihelion.
- 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.
- Discovery of the cystic fibrosis trans-membrane conductance regulator gene.
- The New Zealand Department of Conservation begins to implement a Kakapo Recovery Plan.
- June 8 – GNU Bash is released.
- 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.
- The global concentration of carbon dioxide in Earth's atmosphere reaches 350 ppm (parts per million) by volume.
Physiology and medicine
- The Oxford Database of Perinatal Trials begins publishing online.
- The hepatitis C virus (HCV) is first identified.
- July 17 – The Northrop Grumman B-2 Spirit "Stealth Bomber" aircraft, developed for the United States Air Force, first flies.
- Isamu Akasaki produces the first Gallium nitride p-n junction blue/UV light-emitting diode.
- Nobel Prizes
- Turing Award – William (Velvel) Kahan
- February 27 – Konrad Lorenz (born 1903), Austrian zoologist.
- March 18 – Sir Harold Jeffreys (born 1891), English mathematician.
- August 12 – William Shockley (born 1910), American physicist.
- August 20 – George Adamson (born 1906), British wildlife conservationist.
- August 29 – Sir Peter Scott (born 1909), English wildlife conservationist.
- October 11 – M. King Hubbert (born 1903), American geophysicist.
- October 28 – Louise Hay (born 1935), French-born American mathematician; breast cancer.
- December 14 – Andrei Sakharov (born 1921), Soviet Russian nuclear physicist and political dissident.
- "Horizon Online Ephemeris System for Pluto Barycenter". JPL Horizons On-Line Ephemeris System @ Solar System Dynamics Group. Retrieved January 16, 2011.
- "Identification of the cystic fibrosis gene: chromosome walking and jumping". Science. 8 September 1989. Retrieved 30 October 2013.
- Powlesland, R. G. (1989). Kakapo Recovery Plan 1989–1994. Wellington: Department of Conservation.
- Brian Fox (forwarded by Leonard H. Tower Jr.) (June 8, 1989). "Bash is in beta release!". Newsgroup: gnu.announce. Retrieved October 28, 2010.
- "About the Cochrane Library". The Cochrane Library. Archived from the original on 5 January 2011. Retrieved January 25, 2011.
- Lambert, Mark (1990). Jane's All The World's Aircraft 1990–1991. Coulsdon, UK: Jane's Defence Data. ISBN 0-7106-0908-6.