Moon

Alper Gezeravcı

Born December 1979 in Silifke, Türkiye, Gezeravcı attended the Air Force Academy in Istanbul, Türkiye, where he completed a Bachelor of Science in Electronics Engineering. In addition, he completed a master's degree from the Air Force Institute of Technology at Wright-Patterson Air Force Base.

Mountain

Jeanette J. Epps

Jeanette J. Epps was selected by NASA in 2009 as an astronaut. She completed astronaut candidate training which included scientific and technical briefings, intensive instruction in International Space Station systems, spacewalk training, robotics, T-38 flight training and wilderness survival training.

Landscape

Sergei Krikalev

Krikalev was born in Leningrad in the Soviet Union (now Saint Petersburg, Russia). He enjoyed swimming, skiing, cycling, aerobatic flying, and amateur radio operations, particularly from space (callsign U5MIR). He graduated from high school in 1975. In 1981, he received a mechanical engineering degree from the Leningrad Mechanical Institute, now called Baltic State Technical University.

Pictures

Tracy Caldwell Dyson

Tracy C. Dyson was selected as an astronaut by NASA in 1998. The California native has a Ph.D. in Chemistry, and is a veteran of two 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.