NASA astronaut Jessica Meir and Jack Hathaway practice cardiopulmonary resuscitation (CPR)

jsc2025e070045 (Aug. 21, 2025) --- NASA's SpaceX Crew-12 members Jessica Meir and Jack Hathaway, both NASA astronauts, practice cardiopulmonary resuscitation (CPR) during a medical emergency simulation as part of their training for mission to the International Space Station. Surrounding Meir and Hathaway are various training support personnel at NASA's Johnson Space Center in Houston, Texas. Credit: NASA/Bill Stafford