NMSU Library identified astronomy as an area to be included in its collections.
"Space science, space industry and astronomy have long been a part of the history of the Southwest, and especially of southwestern New Mexico. The personal papers of men such as yourself, then, are as natural and logical a part of a collection on the Southwest as are records dealing with Billy the Kid and agriculture."
Dennis Rowley, NMSU Archivist in letter to Clyde Tombaugh, 1972
- Walter H. Haas Papers, founder of the Association of Lunar and Planetary Observers.
- Hugh M. Johnson Papers, which include much of Johnson's early amateur observational work.
Rio Grande Historical Collections holds the papers of several other astronomers. Among these collections are:
Special Collections holds classic works in the field of astronomy. These were primarily published prior to 1850 and include titles by:
- Tombaugh papers a rich resource of science and history
- NMSU Library Reception Honors Gift of Tombaugh Papers
- New Mexico Historical Records Advisory Board (NMHRAB) grant received
- American Institute of Physics (AIP) grant received