Sandra Hall Magnus is an American engineer and a former NASA astronaut. She returned to Earth with the crew of STS-119 Discovery on March 28, 2009, after having spent 134 days in orbit. She was assigned to the crew of STS-135, the final mission of the Space Shuttle. She is also a licensed amateur radio operator with the call sign KE5FYE.

Michael James Massimino is an American professor of mechanical engineering at Columbia University and a former NASA astronaut. He is the senior advisor of space programs at the Intrepid Sea, Air & Space Museum. Early life Massimino was born August 19, 1962 in Oceanside, New York, and raised in Franklin Square, New York, both on Long Island. He graduated from H. Frank Carey Junior-Senior High School in Franklin Square, New York in 1980. He went on to attend Columbia University, graduating with a Bachelor of Science degree in Industrial Engineering in 1984. He then attended the Massachusetts Institute of Technology, graduating with a Master of Science degree in Mechanical Engineering and a Master of Science degree in Technology and Public Policy in 1988. He continued his education at MIT, earning a Degree of Mechanical Engineer in 1990 and a Doctor of Philosophy degree in Mechanical Engineering in 1992.

Lee Miller Emile Morin is a United States Navy Captain and NASA astronaut. He flew on STS-110 in 2002.

Donald Roy Pettit is an American chemical engineer and a NASA astronaut. He is a veteran of two long-duration stays aboard the International Space Station, one space shuttle mission and a six-week expedition to find meteorites in Antarctica. As of 2018, at age 63, he is NASA's oldest active astronaut.

Lisa Marie Nowak is an American former naval flight officer and NASA astronaut. Born in Washington, D.C., she was selected by NASA in 1996 and qualified as a mission specialist in robotics. Nowak flew aboard Space Shuttle Discovery during the STS-121 mission in July 2006, where she was responsible for operating the robotic arms of the shuttle and the International Space Station. On February 5, 2007, she was arrested in Orlando, Florida, and subsequently charged with the attempted kidnapping of U.S. Air Force Captain Colleen Shipman, who was romantically involved with astronaut William Oefelein. Nowak was released on bail, and initially pleaded not guilty to the charges, which included attempted kidnapping, burglary with assault, and battery. Her assignment to the space agency as an astronaut was terminated by NASA effective March 8, 2007. On November 10, 2009, Nowak agreed to a plea deal with prosecutors and pleaded guilty to charges of felony burglary of a car and misdemeanor battery. Nowak remained a Navy captain until August 2010, when a naval board of inquiry, composed of three admirals, voted unanimously to reduce Nowak in rank to commander and to discharge her from the Navy under other than honorable conditions.

John Lynch Phillips is a NASA astronaut. Phillips is also a Naval Aviator and retired captain, United States Navy Reserve. Phillips has received numerous awards and special honors. He is a National Merit Scholar, graduated 2nd in his class of 906 people at the U.S. Naval Academy in 1972. Phillips has also been awarded the NASA Space Flight Medal, NASA Distinguished Service Medal, the Gagarin Medal and several others. Phillips has logged over 4,400 flight hours and 250 aircraft carrier landings, flying the A-7 Corsair II carrier-based light attack aircraft while on active duty in the Regular Navy and subsequently during his time as a Navy Reservist from 1982 to 2002. At the time of his retirement, Phillips had retained the rank of captain.

Paul William Richards is an American engineer and a former NASA Astronaut. He flew aboard one Space Shuttle mission in 2001.

Piers John Sellers OBE was a British-American meteorologist, NASA astronaut[1] and Director of the Earth Science Division at NASA/GSFC. He was a veteran of three space shuttle missions. Sellers attended Cranbrook School, Cranbrook, Kent, United Kingdom, until 1973, and achieved a bachelor's degree in ecological science from the University of Edinburgh in 1976. In 1981 he gained a doctorate in biometeorology from the University of Leeds. In 2011, Sellers retired from the NASA Astronaut Corps. Before joining the astronaut corps, Sellers worked at NASA Goddard Space Flight Center on research into how the Earth's biosphere and atmosphere interact. This work involved climate system computer modelling and field work utilising aircraft, satellites and ground support input.

Heidemarie Martha Stefanyshyn-Piper is an American Naval officer, engineer, and a former NASA astronaut. She has achieved the rank of Captain in the United States Navy. She is also a qualified and experienced salvage officer. Her major salvage projects include de-stranding the tanker Exxon Houston off the coast of Barbers Point, on the island of Oahu, Hawaii, and developing the plan for the Peruvian Navy salvage of the Peruvian submarine Pacocha. Stefanyshyn-Piper has received numerous honors and awards, such as the Meritorious Service Medal, two Navy Commendation Medals, and two Navy Achievement Medals. She has flown on two Space Shuttle missions, STS-115 and STS-126, during which she completed five spacewalks totaling 33 hours and 42 minutes. As of 2018, she ranks 39th on the all-time list of space walkers by duration.

Daniel M. Tani is an American engineer and a NASA astronaut. Although born in Ridley Park, Pennsylvania, he considers Lombard, Illinois, to be his hometown. With Peggy Whitson, Tani conducted the 100th spacewalk on the International Space Station.

Rex Joseph Walheim is a retired United States Air Force officer, engineer and NASA astronaut. He flew three space shuttle missions, STS-110, STS-122, and STS-135. Walheim logged over 566 hours in space, including 36 hours and 23 minutes of spacewalk (EVA) time. He was assigned as mission specialist and flight engineer on STS-135, the final space shuttle mission.

Peggy Annette Whitson is an American biochemistry researcher, retired NASA astronaut, and former NASA Chief Astronaut. Her first space mission was in 2002, with an extended stay aboard the International Space Station as a member of Expedition 5. Her second mission launched October 10, 2007, as the first female commander of the ISS with Expedition 16. She was on her third long-duration space flight and was the commander of the International Space Station for Expedition 51, before handing over command to Fyodor Yurchikhin on June 1, 2017.