Andrew Michael Allen
(1955– )US astronaut. He was aboard the space shuttle Atlantis in July and August 1992 to deploy the European Retrievable Carrier and demonstrate the tethered satellite system (TSS). In March 1994, ...
Dave Williams
(1954– )Canadian astronaut and physician. He was a member of the crew on the 16-day Spacelab flight aboard the space shuttle Columbia in April 1998. The mission investigated the effects of ...
David Alexander Wolf
(1956– )US astronaut and physician. He flew on the space shuttle Columbia mission in October 1993 to conduct experiments on the effect of microgravity on humans. He spent 119 days aboard the Russian ...
David Low
(1956–2008)US astronaut. His three space shuttle flights include the first flight of Spacelab on board the shuttle Endeavour in June 1993. Microgravity experiments were conducted during the mission ...
Donald Alan Thomas
(1955– )US astronaut. He logged more than 1040 hours during his four space shuttle flights, which included the 15-day Columbia mission in July 1994 that conducted microgravity experiments. He was ...
drop tower
A facility used to put objects into free fall for microgravity experiments on Earth. NASA's 2.2 Second Drop Tower at the Glenn Research Center began operating in the 1960s. The tower has a free-fall ...
fluid shift
A shift in the distribution of human body fluids due to the effects of microgravity. In the early stages of a space flight, an astronaut experiences a puffy face, stuffy nose, and headaches due to ...
Glenn Research Center
(1958–99)NASA facility located in Cleveland, Ohio. It is NASA's leading centre for aeropropulsion and turbomachinery, developing new propulsion, power, and communications technologies for space ...
James Philipp Bagian
(1952– )US astronaut and physician. On board the space shuttle Discovery in March 1989, he became the first person to inject the drug Phenergan to treat space sickness, a treatment now used by NASA. ...
Marshall Space Flight Center
A NASA establishment at Huntsville, Alabama, founded in 1960 by the transfer to NASA of part of the missile work of the US Army's Redstone Arsenal. MSFC developed the Saturn series of launch rockets ...
orthostatic hypotension
A medical ailment suffered by some astronauts after a space mission. Blood pools in the legs and results in a feeling of dizziness on return to Earth. Affected astronauts often need help in walking, ...
Richard Michael Linnehan
(1957– )US astronaut and veterinary surgeon. He was a mission specialist aboard the Life and Microgravity Spacelab, launched in June 1996 on the space shuttle Columbia. In April 1998, he was payload ...
Sam Gemar
(1955– )US astronaut. A mission specialist, his three space shuttle flights included the Discovery mission (September 1991) to deploy the Upper Atmosphere Research Satellite and the Columbia mission ...
Scott Douglas Altman
(1959– )US astronaut. He was one of the seven-person crew that conducted microgravity research aboard the space shuttle Columbia during a 16-day flight in April–May 1998. He was also in the crew on ...
sleep restraint
A NASA term for a sleeping bag used in a spacecraft. Located in the mid-deck in a space shuttle, the sleep restraints are each attached to a padded board to keep the sleeper from floating around the ...
space simulator
A module or laboratory on Earth that artificially imitates the conditions found in space. Devices can replicate microgravity or simulate other conditions in a spacecraft. Microgravity simulators ...
United States Microgravity Laboratory
(USMG)One of two NASA scientific laboratories launched aboard its Spacelab module to study the effects of microgravity (weak gravity causing weightlessness in space). Each USMG carried 14 ...
Zentrum für Angewandte Raumfahrttechnologie und Mikrogravitation
(ZARM;A scientific institution at the University of Bremen, Germany. ZARM researches the guidance, navigation, and control of spacecraft, and has conducted several experiments aboard NASA's space ...
