Former Senior Fellow
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For more than 10 years, space crews from the United States, Russia, and other countries have successfully lived and worked year-round in six-month shifts on the International Space Station (ISS), where they have conducted scientific research. In the coming years, that work will continue, but with a crucial safeguard missing: a space shuttle fleet that provides adequate logistic support and gives human beings a unique capability to fix the space station’s guidance system and rocket thrusters in the event of a failure.
