NASA astronaut Jack Hathaway loads bacterial samples into a portable DNA sequencer

iss074e0722461 (June 17, 2026) --- NASA astronaut and Expedition 74 flight engineer Jack Hathaway loads bacterial samples into a portable DNA sequencer to read their genetic code inside the International Space Station’s Harmony module. The GEARS biotechnology investigation may help scientists understand how bacteria become resistant to antibiotics in the space environment, which could affect an astronaut’s ability to fight infections.