Space Technology and Applications International Forum (STAIF) was an annual conference organized by the University of New Mexico Institute for Space and Nuclear Power Studies (UNM-ISNPS). From 1984 to 1994 the conference series was titled the Symposium on Space Nuclear Power Systems, but the conference scope was broadened with the 12th symposium in 1995, at which a number of new topics were added. The new name was adopted for the 1996 conference, with the individual symposia as subtopics within the broader conference umbrella. The conference series ended with the 2008 conference.
From 1984 to 1989 (2nd through 6th Symposia) the proceedings were published by Orbit Book Company; also in Albuquerque. The STAIF-II conference has continued through 2017 as an annual event, with a stated objective to "sit on the boundary between established science and speculative science," with the proviso that "Speculation must be based upon fundamental scientific principles."