Summary:

- NASA researchers have identified 26 bacterial species that can survive the harsh sterilization processes used in spacecraft assembly cleanrooms.
- These resilient bacteria are able to withstand high temperatures, UV radiation, and chemical disinfectants, posing a challenge for maintaining the sterility required for space exploration.
- Understanding the adaptations and survival mechanisms of these bacteria is crucial for developing more effective cleaning and sterilization protocols to prevent contamination of spacecraft and ensure the safety of future missions.