Editing 1973 in science (section)

==Deaths==
* February 11 – [[J. Hans D. Jensen]] (b. [[1907 in science|1907]]), [[Germans|German]] [[nuclear physicist]]
* February 20 – [[Alf Lysholm]] (b. [[1893 in science|1893]]), [[Swedes|Swedish]] [[mechanical engineer]].
* March 12 – [[David Lack]] (b. [[1910 in science|1910]]), [[English people|English]] [[ornithologist]]
* March 14 – [[Howard H. Aiken]] (b. [[1900 in science|1900]]), [[Americans|American]] computing pioneer
* March 28 – [[C. Doris Hellman]] (b. [[1910 in science|1910]]), American historian of science
* March 30 – [[William Justin Kroll]] (b. [[1889 in science|1889]]), [[Luxembourgers|Luxembourgish]] [[metallurgist]]
* May 21 – [[Grigore Moisil]] (b. [[1906 in science|1906]]), Romanian mathematician, died in Canada
* July 1 – [[Laurens Hammond]] (b. [[1895 in science|1895]]), American inventor
* August 9 – [[Preben von Magnus]] (b. [[1912 in science|1912]]), [[Danes|Danish]] [[virologist]]
* August 12 – [[Walter Rudolf Hess]] (b. [[1881 in science|1881]]), [[Swiss people|Swiss]] [[physiologist]], recipient of the [[Nobel Prize in Physiology or Medicine]]
* August 16 – [[Selman Waksman]] (b. [[1888 in science|1888]]), Ukrainian-born Jewish-American [[biochemist]] and [[microbiologist]]
* November 25 – [[Elisa Leonida Zamfirescu]] (b. [[1887 in science|1887]]), [[Romanians|Romanian]] [[engineer]]
* December 10 – [[Wolf V. Vishniac]] (b. [[1922 in science|1922]]), American microbiologist
* December 17 – [[Charles Greeley Abbot]] (b. [[1872 in science|1872]]), American [[astrophysicist]]