Argon na-eji dị ka propellant na mmepe nke Variable Specific Impulse Magnetoplasma Rocket (VASIMR). A na-ekwe ka gas nke argon na-agbasawanye, iji mee ka isi ndị na-achọ ihe ụfọdụ nke AIM-9 Sidewinder missile na ndị ọzọ na-eji isi ndị na-achọ ihe na-eji oyi eme ihe. A na-echekwa gas ahụ na nrụgide dị elu. Argon-39, nke nwere ọkara ndụ nke afọ 269, ejirila maka ọtụtụ ngwa, isi ice na mmiri mmiri. Ọzọkwa, a na-eji potassium xenon na ihe ndị metụtara ya na-eme ihe maka metamorphic, sedimentary, na igneous rocks.
Afọ 269