THE LONG ENDURANCE "STRATOSONDE" LIGHTER-THAN-AIR, UNCREWED SYSTEM COMBINES A LOW-COST, 5DAY ENDURANCE STRATOSONDE SUPPORTS UP TO 10 MICRO-DROPSONDES, WHICH WHEN RELEASED FROM THE HAB, DESCEND SAFELY THROUGH THE ENTIRE ATMOSPHERIC COLUMN UNDER A RIBBON DROGUE WHILE REPORTING OBSERVATIONS DIRECTLY BACK TO THE HAB. THIS PROJECT WILL ASSESS THE FEASIBILITY OF INTEGRATING A DISPOSABLE MINIATURE AEROSOL AND PARTICUL