Key insights
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1
NASA cited medical privacy for withholding details: Officials refused to identify the astronaut who developed the health problem or explain what happened, citing medical privacy.
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2
NASA said it was too early to draw conclusions about the cause: Jared Isaacman said spacewalk preparations did not lead to the medical situation and said it would be premature to draw conclusions.
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3
NASA said station operations would be constrained until the next crew arrives: NASA said it will be unable to perform a spacewalk, even for an emergency, until the arrival of the next crew.