List of years in science (Table)
… 1983 • 1984 • 1985 • 1986 • 1987 • 1988 • 1989 •    1990 • 1991 • 1992 – 1993 – 1994 • 1995 • 1996 •    1997 • 1998 • 1999 • 2000 • 2001 • 2002 • 2003 …
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… 1990 • 1991 • 1992 – 1993 – 1994 • 1995 • 1996 … … 1960s • 1970s • 1980s – 1990s – 2000s • 2010s • 2020s … … 19th century – 20th century – 21st century …
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The year 1993 in science and technology involved many significant events, listed below.

Astronomy and space exploration

• December 2 - STS-61 is launched - This Space Shuttle mission to the Hubble Space Telescope (HST) installed corrective optics, plus upgrades, that not only allowed the telescope to focus properly, but also increased magnification/clarity beyond the original design: HST had been pre-designed for such future upgrades (see: continuous improvement).
• Asteroid 30963 Mount Banzan is discovered by Masahiro Koishikawa.

Computer science

• March 22 - The Intel Corporation ships the first Pentium chips
• March 31 - A bug in a program written by Richard Depew sends an article to 200 newsgroups simultaneously. The term spamming is coined by Joel Furr to describe the incident.
• April 22 - Release of version 1.0 of the Mosaic web browser.

Awards

• Nobel Prizes
  • Physics - Russell A. Hulse, Joseph H. Taylor Jr.
  • Chemistry - Kary Mullis, Michael Smith
  • Medicine - Richard J. Roberts, Phillip A. Sharp
• Turing Award - Juris Hartmanis, Richard Stearns
• Wollaston Medal for Geology - Samuel Epstein

Deaths

• February 11 - Robert W. Holley, American biochemist, Nobel Prize laureate (b. 1922)