Gregory McCartney holds a master's and a bachelor's degree with studies in planetary atmospheres, atmospheric science, meteorology and astronomy.|He is an astronaut candidate applicant and continues to educate himself on the latest understandings and theories of the universe, spanning a broad spectrum of topics ranging from astrophysics to planetary astronomy.|Greg is a council member for the Friends of the Institute for Astronomy at the University of Hawaii and a member of the Hawaiian Astronomical Society. He is also a former Adjunct Professor with Hawaii Pacific University and Teaching Assistant with the University of Hawaii at Manoa.|His 20-year professional career has been in the environmental professional field, protecting this planet's air, water and land throughout the Hawaiian islands.|Greg is married to his wife Rowena, and they have three children, namely Orion Kalani, Magellan Kealii and Carina Hokulea. Their dog's name is Cosmos.