List of years in science (Table)
… 1980 • 1981 • 1982 • 1983 • 1984 • 1985 • 1986 •    1987 • 1988 • 1989 – 1990 – 1991 • 1992 • 1993 •    1994 • 1995 • 1996 • 1997 • 1998 • 1999 • 2000 …
Related time period or subjects
… 1987 • 1988 • 1989 – 1990 – 1991 • 1992 • 1993 … … 1960s • 1970s • 1980s – 1990s – 2000s • 2010s • 2020s … … 19th century – 20th century – 21st century …
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The year 1990 in science and technology involved many significant events, some listed below.

Astronomy and space exploration

• April 24 - The Space Shuttle Discovery places the Hubble Space Telescope into orbit.

Computer science

• November 12 - Tim Berners-Lee publishes a more formal proposal for the World Wide Web. [1]
• November 13 - The first known web page is written. [2]

Awards

• Fields Prize in Mathematics: Vladimir Drinfeld, Vaughan Frederick Randal Jones, Shigefumi Mori and Edward Witten
• Nobel Prizes
  • Physics - Jerome I. Friedman, Henry W. Kendall, Richard Taylor
  • Chemistry - Elias James Corey
  • Medicine - Joseph E. Murray, E. Donnall Thomas
• Turing Award - Fernando J. Corbató

Births

Deaths

• January 4 - Doc Edgerton, (b. 1903), professor electrical engineer.
• March 22 - Gerald Bull (b. 1928), engineer.
• March 24 - An Wang (b. 1922), computer designer.