Dr Tracy Caldwell Dyson

Tracy C. Dyson has a Ph.D. in Chemistry, and is a veteran of three space flights. Dr. Dyson has designed, constructed and implemented electronics and hardware for the study of atmospheric gas phase chemistry, and has developed and presented numerous papers on methods of chemical ionization for the spectral interpretation of trace compounds.

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Christina Koch

Christina Hammock Koch was selected as a NASA astronaut in 2013. She served as flight engineer on the International Space Station (ISS) for Expedition 59, 60 and 61. Koch set a record for the longest single spaceflight by a woman with a total of 328 days in space and participated in the first all-female spacewalk.

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