"NASA’s Artemis loss-of-crew threshold is approximately 3.3% for missions overall and 2.5% for lunar operations."
The Inspector General reports NASA's loss-of-crew thresholds of 1 in 30 for Artemis missions overall and 1 in 40 for lunar operations. These requirements illustrate the different quantified safety challenges associated with lunar exploration compared with routine low-Earth-orbit transportation.
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