Sentences with phrase «shuttle flight risk»
The space shuttle flight risk was four times higher than that.
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Kelly's twin brother, retired astronaut Mike Kelly, who embarked on four space shuttle flights during his own career, will remain on Earth during the mission so that scientists can use the siblings to learn more the risks of space exploration.
The agency decided to ground the space shuttle program and conduct a full investigation to determine if manned space flight was worth the risks involved.