Editing 2004 in science (section)

==Deaths==
* January 6 – [[Thomas Stockham]] (b. [[1933 in science|1933]]), [[Americans|American]] electrical engineer and inventor.
* January 12 – [[Olga Ladyzhenskaya]] (b. [[1922 in science|1922]]), [[Soviet Union|Soviet]] mathematician.
* February 6 – [[Humphry Osmond]] (b. [[1917 in science|1917]]), English-born [[psychiatrist]].
* February 21 – [[John D. Hoffman]] (b. [[1922 in science|1922]]), American [[nuclear chemist]].
* March 15
** [[Bill Pickering (rocket scientist)|Bill Pickering]] (b. [[1910 in science|1910]]), New Zealand-born head of [[NASA]]'s [[Jet Propulsion Laboratory]].
** [[John Pople|Sir John Pople]] (b. [[1925 in science|1925]]), British [[Nobel Prize]]-winning chemist.
* April 6 – [[Biswa Ranjan Nag]] (b. [[1932 in science|1932]]), Indian physicist.
* April 19 – [[John Maynard Smith]] (b. [[1920 in science|1920]]), English [[evolutionary biologist]] and [[geneticist]].
* May 27 – [[Mikhail Postnikov]] (b. [[1927 in science|1927]]), Soviet mathematician, known for his work in [[Algebraic topology|algebraic]] and [[differential topology]].
* June 8 – [[David Mervyn Blow]] (b. [[1931 in science|1931]]), English [[biophysicist]].
* July 3 – [[Andriyan Nikolayev]] (b. [[1929 in science|1929]]), [[Astronaut|cosmonaut]].
* July 28 – [[Francis Crick]] (b. [[1916 in science|1916]]), American [[Nobel Prize in Physiology or Medicine|Nobel laureate in Physiology]] for discovering the [[double helix]] structure for [[DNA]].
* August 12 – [[Anthony John Clark|John Clark]] (b. [[1951 in science|1951]]), English-born molecular biologist, head of the [[Roslin Institute]] and part of the team that cloned [[Dolly the Sheep]].
* August 15 – [[Sune K. Bergström]] (b. [[1916 in science|1916]]), Swedish [[biochemist]], winner of the 1982 [[Nobel Prize for Medicine]].
* August 31 – [[Fred Whipple]] (b. [[1906 in science|1906]]), American [[astronomer]] who coined the term "dirty snowball" to explain the nature of [[comet]]s.
* October 5 – [[Maurice Wilkins]] (b. [[1916 in science|1916]]), New Zealand-born British [[Nobel Prize in Physiology or Medicine|Nobel laureate in Physiology]] for discovering the [[double helix]] structure for [[DNA]] using [[X-ray diffraction]].
* October 19 – [[Lewis Urry]] (b. [[1927 in science|1927]]), Canadian inventor of the long-lasting [[alkaline battery]].
* October 21 – [[Magdalena K. P. Smith Meyer]] (b. 1931), South African [[acarologist]].
* November 18 – [[Robert Bacher]] (b. [[1905 in science|1905]]), American nuclear physicist and one of the leaders of the [[Manhattan Project]], Professor and Provost of the [[California Institute of Technology]].
* November 20 – [[Ancel Keys]] (b. [[1904 in science|1904]]), American nutritionist.
* December 26 – [[Frank Pantridge]] (b. [[1916 in science|1916]]), Northern Irish [[cardiologist]].
* December 29 – [[Julius Axelrod]], (b. [[1912 in science|1912]]), American [[biochemist]], [[Nobel Prize in Physiology]] for work with [[catecholamine]] [[neurotransmitter]]s.