Expedition 65 Flight Engineer Megan McArthur sets up a microscope to view protein crystal samples.
iss065e154962 (July 6, 2021) — NASA astronaut and Expedition 65 Flight Engineer Megan McArthur sets up a microscope to view protein crystal samples for the Real-time Protein Crystal Growth-2 experiment. The biotechnology study looks at new ways to produce high-quality protein crystals which could lead to new disease therapies on Earth.