One of the primary benefits of installing Earth science instruments on the international space station is access. "You can actually deliver a piece of hardware, install it, check it out, test it and if it does not perform as planned, you have the opportunity to repair or replace it," said Duane Ratliff, chief operating officer for the Center for the Advancement of Science in Space (CASIS), the nonprofit organization based at NASA's Kennedy Space Center in Florida tasked with promoting and managing the international space station (ISS) U.S. National Laboratory.
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