Space exploration Into the twenty-first century is contingent upon the
ability of states to forge an appropriate vehicle for international c
ooperation. A theoretical framework that explains international cooper
ation in space exploration is proposed. This framework encompasses sci
entific, technological, political, and economic initial conditions, st
ate and nonstate political actors, and models of cooperation that expl
ain how initial conditions and actors interact to realize cooperative
outcomes. It is hypothesized that the prevailing initial conditions fa
vor certain political actors over others which, in turn, promote a spe
cific model of cooperation. Cooperative policy outcomes are examined a
nd assessed vis-a-vis case studies of cooperation in space exploration
. On this basis, policy recommendations that engender effective cooper
ative outcomes in space exploration are suggested.