Argon ana amfani da shi azaman propellant a cikin ci gaban Variable Specific Impulse Magnetoplasma Rocket (VASIMR). Ana ba da izinin gas ɗin argon da aka matse ya faɗaɗa, don sanyaya kawunan masu neman wasu nau'ikan AIM-9 Sidewinder da sauran makamai masu linzami waɗanda ke amfani da kawunan masu neman zafin jiki. Ana adana gas ɗin a babban matsin lamba. Argon-39, tare da rabin rayuwa na shekaru 269, an yi amfani da shi don aikace-aikace da yawa, da farko don ƙarancin kankara da ruwan ƙasa. Hakanan, ana amfani da potassium xenon da argon mai alaƙa da rigakafin rigakafin metamorphic, sedimentary, igneous, da kuma ƙarancin zafin jiki.
Shekaru 269