Sandra Hall Magnus (born October 30, 1964) is an American
engineer
Engineers, as practitioners of engineering, are professionals who Invention, invent, design, build, maintain and test machines, complex systems, structures, gadgets and materials. They aim to fulfill functional objectives and requirements while ...
and a former
NASA
The National Aeronautics and Space Administration (NASA ) is an independent agencies of the United States government, independent agency of the federal government of the United States, US federal government responsible for the United States ...
astronaut
An astronaut (from the Ancient Greek (), meaning 'star', and (), meaning 'sailor') is a person trained, equipped, and deployed by a List of human spaceflight programs, human spaceflight program to serve as a commander or crew member of a spa ...
.
She flew to space three times, as mission specialist on
STS-112
STS-112 (ISS assembly sequence, ISS assembly flight 9A) was an 11-day Space Shuttle mission to the International Space Station (ISS) flown by . Space Shuttle ''Atlantis'' was launched on 7 October 2002 at 19:45 UTC from the Kennedy Space Center's ...
, as ISS crewmember during
Expedition 18 and as mission specialist on
STS-135
STS-135 ( ISS assembly flight ULF7) was the 135th and final mission of the American Space Shuttle program. It used the orbiter '' Atlantis'' and hardware originally processed for the STS-335 contingency mission, which was not flown. STS-135 ...
. She is also a licensed
amateur radio
Amateur radio, also known as ham radio, is the use of the radio frequency radio spectrum, spectrum for purposes of non-commercial exchange of messages, wireless experimentation, self-training, private recreation, radiosport, contesting, and emer ...
operator with the
call sign
In broadcasting and radio communications, a call sign (also known as a call name or call letters—and historically as a call signal—or abbreviated as a call) is a unique identifier for a transmitter station. A call sign can be formally as ...
KE5FYE. From 2012 until 2018 Magnus was the executive director of the
American Institute of Aeronautics and Astronautics
The American Institute of Aeronautics and Astronautics (AIAA) is a professional society for the field of aerospace engineering
Aerospace engineering is the primary field of engineering concerned with the development of aircraft and spacecra ...
.
Biography
Early life and education
Magnus was born and raised in
Belleville, Illinois
Belleville is a city in St. Clair County, Illinois, United States, and its county seat. It is a southeastern suburb of St. Louis. The population was 42,404 at the 2020 United States census, 2020 census, making it the most populated city in the Me ...
. She earned degrees in
physics
Physics is the scientific study of matter, its Elementary particle, fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. "Physical science is that department of knowledge whi ...
and
electrical engineering
Electrical engineering is an engineering discipline concerned with the study, design, and application of equipment, devices, and systems that use electricity, electronics, and electromagnetism. It emerged as an identifiable occupation in the l ...
from the
University of Missouri–Rolla (now known as the Missouri University of Science and Technology) before earning a
PhD
A Doctor of Philosophy (PhD, DPhil; or ) is a terminal degree that usually denotes the highest level of academic achievement in a given discipline and is awarded following a course of graduate study and original research. The name of the deg ...
in
materials science and engineering
Materials science is an interdisciplinary field of researching and discovering materials. Materials engineering is an engineering field of finding uses for materials in other fields and industries.
The intellectual origins of materials scien ...
from the
Georgia Institute of Technology
The Georgia Institute of Technology (commonly referred to as Georgia Tech, GT, and simply Tech or the Institute) is a public university, public research university and Institute of technology (United States), institute of technology in Atlanta, ...
in 1996. Research for her
dissertation, entitled "An Investigation of the relationship between the
thermochemistry
Thermochemistry is the study of the heat energy which is associated with chemical reactions and/or phase changes such as melting and boiling. A reaction may release or absorb energy, and a phase change may do the same. Thermochemistry focuses on ...
and
emission
Emission may refer to:
Chemical products
* Emission of air pollutants, notably:
** Flue gas, gas exiting to the atmosphere via a flue
** Exhaust gas, flue gas generated by fuel combustion
** Emission of greenhouse gases, which absorb and emit rad ...
behavior of
thermionic cathode
In vacuum tubes and gas-filled tubes, a hot cathode or thermionic cathode is a cathode electrode which is heated to make it emit electrons due to thermionic emission. This is in contrast to a cold cathode, which does not have a heating element. T ...
s based on the BaO-ScO-WO ternary system," was supported by a fellowship from the
NASA Lewis Research Center.
Engineering career
During the 1980s, Magnus worked on
stealth aircraft
Stealth aircraft are designed to avoid detection using a variety of technologies that reduce reflection/emission of radar, infrared, visible light, radio frequency (RF) spectrum, and audio, collectively known as stealth technology. The F-117 Ni ...
design as an
engineer
Engineers, as practitioners of engineering, are professionals who Invention, invent, design, build, maintain and test machines, complex systems, structures, gadgets and materials. They aim to fulfill functional objectives and requirements while ...
for
McDonnell Douglas
McDonnell Douglas Corporation was a major American Aerospace manufacturer, aerospace manufacturing corporation and defense contractor, formed by the merger of McDonnell Aircraft and the Douglas Aircraft Company in 1967. Between then and its own ...
. She worked on the propulsion system for the
A-12 Avenger II
The General Dynamics/McDonnell Douglas A-12 Avenger II was a proposed American attack aircraft from General Dynamics and McDonnell Douglas. It was to be an all-weather, carrier-based stealth bomber replacement for the Grumman A-6 Intruder in ...
until the project was canceled by the
Navy
A navy, naval force, military maritime fleet, war navy, or maritime force is the military branch, branch of a nation's armed forces principally designated for naval warfare, naval and amphibious warfare; namely, lake-borne, riverine, littoral z ...
in 1991.
NASA career

Magnus was selected as an astronaut candidate in 1996. Following training for two years from January 1997 until May 1998, Magnus was assigned to the Payloads/Habitability branch in the Astronaut office. Her work included coordinating with the European Space Agency and the Development Agency of Japan (NASDA) and Brazil. In May 1998 she was assigned to work in Russia supporting payload hardware development and testing. In 2000 she was
CAPCOM
is a Japanese video game company. It has created a number of critically acclaimed and List of best-selling video game franchises, multi-million-selling game franchises, with its most commercially successful being ''Resident Evil'', ''Monster ...
for the International Space Station.
STS-112
She flew her first space mission,
STS-112
STS-112 (ISS assembly sequence, ISS assembly flight 9A) was an 11-day Space Shuttle mission to the International Space Station (ISS) flown by . Space Shuttle ''Atlantis'' was launched on 7 October 2002 at 19:45 UTC from the Kennedy Space Center's ...
, in October 2002 as a mission specialist. The main objective of
Space Shuttle ''Atlantis''' mission was the installation of the S1 truss section on the
International Space Station
The International Space Station (ISS) is a large space station that was Assembly of the International Space Station, assembled and is maintained in low Earth orbit by a collaboration of five space agencies and their contractors: NASA (United ...
(ISS) and consumables delivery. Magnus operated the space station's robotic arm during the three spacewalks required to install and activate the S1 truss. The flight duration was 10 days 19 hours 58 minutes and 44 seconds.
[
]
Survival training
From January 29–31, 2006, together with Oleg Artemiev and Michael Barratt, Magnus took part in a two-day examination for the ability to survive in an uninhabited area in case of the Soyuz descent module making an emergency landing. She passed this examination in the forest near Moscow
Moscow is the Capital city, capital and List of cities and towns in Russia by population, largest city of Russia, standing on the Moskva (river), Moskva River in Central Russia. It has a population estimated at over 13 million residents with ...
.
NEEMO 11
From September 16–22, 2006, Magnus served as the commander of NASA's NEEMO 11 mission, an undersea expedition at the National Oceanic and Atmospheric Administration
The National Oceanic and Atmospheric Administration (NOAA ) is an American scientific and regulatory agency charged with Weather forecasting, forecasting weather, monitoring oceanic and atmospheric conditions, Hydrography, charting the seas, ...
's Aquarius laboratory located off the coast of Florida
Florida ( ; ) is a U.S. state, state in the Southeastern United States, Southeastern region of the United States. It borders the Gulf of Mexico to the west, Alabama to the northwest, Georgia (U.S. state), Georgia to the north, the Atlantic ...
. With fellow astronaut/aquanaut
An aquanaut is any person who remains underwater, breathing at the ambient pressure for long enough for the concentration of the inert components of the breathing gas dissolved in the body tissues to reach equilibrium, in a state known as sat ...
s Timothy Kopra, Robert Behnken and Timothy Creamer, all of whom were training for possible assignment to missions to the International Space Station, Magnus imitated moonwalks, tested concepts for mobility using various spacesuit
A space suit (or spacesuit) is an environmental suit used for protection from the harsh Space environment, environment of outer space, mainly from its Vacuum (outer space), vacuum as a highly specialized pressure suit, but also its temperatu ...
configurations and weights to simulate lunar gravity
In physics, gravity (), also known as gravitation or a gravitational interaction, is a fundamental interaction, a mutual attraction between all massive particles. On Earth, gravity takes a slightly different meaning: the observed force b ...
. Techniques for communication, navigation, geological sample retrieval, construction and using remote-controlled robot
A robot is a machine—especially one Computer program, programmable by a computer—capable of carrying out a complex series of actions Automation, automatically. A robot can be guided by an external control device, or the robot control, co ...
s on the Moon
The Moon is Earth's only natural satellite. It Orbit of the Moon, orbits around Earth at Lunar distance, an average distance of (; about 30 times Earth diameter, Earth's diameter). The Moon rotation, rotates, with a rotation period (lunar ...
's surface also were tested. National Undersea Research Center support crew members Larry Ward and Roger Garcia provided engineering
Engineering is the practice of using natural science, mathematics, and the engineering design process to Problem solving#Engineering, solve problems within technology, increase efficiency and productivity, and improve Systems engineering, s ...
support inside the habitat
In ecology, habitat refers to the array of resources, biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species' habitat can be seen as the physical manifestation of its ...
.
Expedition 18
Magnus served as flight engineer on board the International Space Station as part of Expedition 18. Magnus was a mission specialist on STS-126
STS-126 was the one hundred and twenty-fourth NASA Space Shuttle mission, and twenty-second orbital flight of the ''Space Shuttle Endeavour'' (OV-105) to the International Space Station (ISS). The purpose of the mission, referred to as ULF2 by ...
for the trip to the station, which launched on November 14, 2008. She served as mission specialist on STS-119
STS-119 ( ISS assembly flight 15A) was a Space Shuttle mission to the International Space Station (ISS) which was flown by Space Shuttle ''Discovery'' during March 2009. It was Discovery's 36th flight. It delivered and assembled the fourth star ...
when it returned on March 28, 2009. She logged 133 days in orbit and received warm greetings from NASA on her return. Her replacement, JAXA
The is the Japanese national air and space agency. Through the merger of three previously independent organizations, JAXA was formed on 1 October 2003. JAXA is responsible for research, technology development and launch of satellites into o ...
astronaut Koichi Wakata
is a Japanese engineer and an astronaut working for Axiom Space. Wakata retired from JAXA in 2024 after a career in spaceflight spanning nearly two decades. He logged over 500 days in space across five missions: three aboard the Space Shuttle, ...
, was launched aboard ''Discovery'' on March 15, 2009.
STS-135
On September 14, 2010, NASA announced Magnus to be one of four astronauts assigned to the STS-135 "launch on need" crew that was, if needed, to fly a rescue mission for STS-134
STS-134 (ISS assembly sequence, ISS assembly flight ULF6) was the penultimate mission of NASA's Space Shuttle program and the 25th and last spaceflight of . This flight delivered the Alpha Magnetic Spectrometer and an ExPRESS Logistics Carrier ...
, which was originally the last scheduled shuttle flight. Other members assigned to that crew were commander Christopher Ferguson, pilot Douglas G. Hurley, and fellow mission specialist Rex J. Walheim. In January 2011, NASA added STS-135
STS-135 ( ISS assembly flight ULF7) was the 135th and final mission of the American Space Shuttle program. It used the orbiter '' Atlantis'' and hardware originally processed for the STS-335 contingency mission, which was not flown. STS-135 ...
to the manifest as the final Space Shuttle mission, scheduled to launch in July 2011; STS-134 was conducted successfully in May 2011, requiring no rescue flight. The mission launched successfully on 8 July 2011 and landed on July 21.
In September 2012, Magnus became deputy Chief of the Astronaut Office.
After NASA
In October 2012, Magnus left NASA Astronaut corps to become the executive director of the American Institute of Aeronautics and Astronautics
The American Institute of Aeronautics and Astronautics (AIAA) is a professional society for the field of aerospace engineering
Aerospace engineering is the primary field of engineering concerned with the development of aircraft and spacecra ...
(AIAA). She was the executive director until January 2018.
From 2018 to 2019, Magnus was a principal at AstroPlanetView. In 2019, she became the deputy director for Engineering within the Office of the Under Secretary of Defense for Research and Engineering, serving under former NASA Administrator
The administrator of the National Aeronautics and Space Administration is the highest-ranking official of NASA, the national List of space agencies, space agency of the United States. The administrator is NASA's chief decision maker, responsible ...
Michael Griffin.
On February 9, 2021, Virgin Galactic
Virgin Galactic Holdings, Inc. is a British-American spaceflight company founded by Richard Branson and the Virgin Group conglomerate, which retains an 11.9% stake through Virgin Investments Limited. It is headquartered in California, and opera ...
announced that Magnus would be joining their Space Advisory Board to help "provide advice to senior management as the company moves forward to open space for the benefit of all." Magnus will be joined by former astronaut Chris Hadfield
Chris Austin Hadfield (born August 29, 1959) is a Canadian retired astronaut, engineer, fighter pilot, musician, and writer. As the first Canadian to perform extravehicular activity in outer space, he has flown two Space Shuttle missions and ...
and Chief Scientist of Cubic Corporation
Cubic Corporation is an American multinational defense and public transportation equipment manufacturer. It operates two business segments: Cubic Transportation Systems (CTS) and Cubic Mission and Performance Solutions (CMPS).
History
Cubic C ...
David A. Whelan.
References
External links
*
*
Spacefacts biography
"Spacebook," Dr. Magnus's blog during her 2008-9 mission aboard the ISS
NASA biography
October 2012
{{DEFAULTSORT:Magnus, Sandra Hall
1964 births
Living people
Amateur radio people
Aquanauts
Crew members of the International Space Station
American women astronauts
Georgia Tech alumni
Missouri University of Science and Technology alumni
People from Belleville, Illinois
American women engineers
Amateur radio women
Space Shuttle program astronauts
American electrical engineers
Engineers from Illinois
21st-century American women
United States Astronaut Hall of Fame inductees