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・ 1991 Men's British Open Squash Championship
・ 1991 Men's European Volleyball Championship
・ 1991 Men's Hockey Champions Trophy
・ 1991 in Northern Ireland
・ 1991 in Norway
・ 1991 in organized crime
・ 1991 in Pakistan
・ 1991 in paleontology
・ 1991 in philosophy
・ 1991 in poetry
・ 1991 in Portugal
・ 1991 in radio
・ 1991 in rail transport
・ 1991 in Romania
・ 1991 in Russia
1991 in science
・ 1991 in Scotland
・ 1991 in Scottish television
・ 1991 in Shooto
・ 1991 in Singapore
・ 1991 in Somalia
・ 1991 in South Africa
・ 1991 in South Korea
・ 1991 in spaceflight
・ 1991 in spaceflight (January–June)
・ 1991 in spaceflight (July–December)
・ 1991 in sports
・ 1991 in Sri Lanka
・ 1991 in Sweden
・ 1991 in Swedish football


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1991 in science : ウィキペディア英語版
1991 in science

The year 1991 in science and technology involved many significant events, some listed below.
==Astronomy and space exploration==

* May 18 – Helen Sharman becomes the first British person in space, flying with the Soyuz TM-12 mission. As of 2011 she is the only British astronaut.
* October 29 – The Galileo probe becomes the first spacecraft to visit an asteroid (951 Gaspra).
* Asteroid 6859 Datemasamune is discovered by Masahiro Koishikawa.
* 11514 Tsunenaga is discovered.
* There are four lunar eclipses: three penumbral on January 30, July 26, and June 27, and one minor partial lunar eclipse on December 21.
* There are two solar eclipses, one annular eclipse on January 15, and a very long total eclipse on July 11, lasting 6 minutes and 53 seconds.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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