Astronaut Megan McArthur swaps sample cartridges in a research rack inside the Materials Science Laboratory rack.
iss065e081297 (May 28, 2021) — NASA astronaut and Expedition 65 Flight Engineer Megan McArthur swaps sample cartridges inside the Materials Science Laboratory (MSL) rack. The MSL enables observations of microgravity’s impact on a variety metals, alloys, polymers, semiconductors, ceramics, crystals, and glasses, to discover new applications for existing materials and new or improved materials.