SCIENCE GOALS AND OBJECTIVESA NEARBY SUPERNOVA EXPLODED ~2 MILLION YEARS AGO AND SENT DUST GRAINS INTO THE SOLAR SYSTEM LEAVING A DETECTABLE TRACE OF THE RADIOACTIVE ISOTOPE 60FE GLOBALLY ON EARTH'S OCEAN FLOOR AS WELL AS THE MOON AND OTHER PLANETARY BODIES. I PROPOSE TO EXTRACT SUPERNOVA DUST FROM DEEP-SEA SEDIMENTS AND ANALYZE ITS ISOTOPIC COMPOSITION AND DETAILED STRUCTURE. I WILL THEN COMPARE THESE GRAINS TO PRESOLAR STARDUST GRAINS THAT WILL BE EXTRACTED FROM METEORITES WHICH FORMED MORE THAN ~4.6 BILLION YEARS AGO IN ORDER TO CONSTRAIN MODELS OF SUPERNOVA NUCLEOSYNTHESIS AND EJECTA MIXING. THE COMPARISON OF THE ISOTOPIC COMPOSITIONS OF ANCIENT AND PRESOLAR SUPERNOVA DUST WILL SHED LIGHT ON THE CHEMICAL EVOLUTION OF HIGH-MASS STARS IN THE NEIGHBORHOOD OF THE SUN. METHODOLOGY WE WILL DISSOLVE THE DEEP-SEA SEDIMENTS IN ACIDS IN CO-I WANG'S CLEAN LAB AT WASH U. THEN WE WILL DO AUTOMATED SE BSE AND EDX IMAGING ON A TESCAN FEG-SEM IN PI OGLIORE'S LAB TO IDENTIFY SIC GRAINS. WE WILL ANALYZE VARIOUS ISOTOPE SYSTEMS (AL-MG SI C TI O ETC.) OF THESE GRAINS USING THE WASH U NANOSIMS. RELEVANCE TO THE EMERGING WORLDS PROGRAM THE EMERGING WORLDS PROGRAM COVERS "STUDIES OF THE MATERIALS PRESENT AND PROCESSES THAT LED TO THE ONSET OF SOLAR SYSTEM FORMATION." (C.2.1) PRESOLAR GRAINS WERE AN IMPORTANT PART OF THE SOLID MATERIAL AT THE ONSET OF SOLAR SYSTEM FORMATION. COMPARISON OF PRESOLAR GRAINS WITH CONTEMPORARY SUPERNOVA GRAIN WILL ALLOW US TO UNDERSTAND HOW THE SOLAR SYSTEM'S IMMEDIATE GALACTIC ENVIRONMENT (I.E. "THE MOLECULAR CLOUD FROM WHICH THE SOLAR SYSTEM FORMED" PER EMERGING WORLDS C.2.1) HAS CHANGED OVER THE LAST 4.6 BILLION YEARS. OUR PROPOSED WORK WILL SHED LIGHT ON THE MOST PRIMITIVE BUILDING BLOCKS OF THE SOLAR SYSTEM ADDRESSING "THE FUNDAMENTAL SCIENCE QUESTION OF HOW THE SOLAR SYSTEM FORMED" THE MAIN GOAL OF EMERGING WORLDS (C.2 INTRODUCTION).