NASA astronaut Jonny Kim removes research hardware from inside the Materials Science Laboratory

iss073e0222456 (June 27, 2025) --- NASA astronaut and Expedition 73 Flight Engineer Jonny Kim removes research hardware from inside the Materials Science Laboratory (MSL) located inside the International Space Station's Destiny laboratory module. The MSL uses two different furnaces that operate one at a time to discover new applications for existing materials, such as metals, alloys, polymers, and new or improved materials.