NASA astronaut Zena Cardman conducting research operations for a biotechnology experiment

iss073e0865458 (Oct. 7, 2025) --- NASA astronaut and Expedition 73 Flight Engineer Zena Cardman inspects sample cassettes for installation into the Advanced Space Experiment Processor-4 (ADSEP-4) at the maintenance work area inside the International Space Station's Harmony module. She was conducting research operations for the Pharmaceutical In-space Laboratory biotechnology experiment, which is investigating methods to advance pharmaceutical manufacturing in microgravity.