WASHINGTON — The Center for the Advancement of Science in Space (CASIS) is working a deal with pharmaceutical giant Merck & Co. to fly a biomedical experiment to the international space station (ISS) sometime in 2013.

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Dan Leone is the NASA reporter for SpaceNews, where he also covers other civilian-run U.S. government space programs and a growing number of entrepreneurial space companies. He joined SpaceNews in 2011.Dan earned a bachelor's degree in public communications...