David Saint-Jacques
( , ; born 6 January 1970)
is a Canadian
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 ...
with the
Canadian Space Agency
The Canadian Space Agency (CSA; ) is the national space agency of Canada, established in 1990 by the ''Canadian Space Agency Act''.
The President of the Canadian Space Agency, president is Lisa Campbell (civil servant), Lisa Campbell, who took ...
(CSA). He is also an
astrophysicist,
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
physician
A physician, medical practitioner (British English), medical doctor, or simply doctor is a health professional who practices medicine, which is concerned with promoting, maintaining or restoring health through the Medical education, study, Med ...
.
In December 2018, he launched to 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 ...
, as flight engineer on Expeditions
57,
58 and
59; he returned to Earth on 25 June 2019.
Astronaut career

Saint-Jacques was selected in May 2009 by the
Canadian Space Agency
The Canadian Space Agency (CSA; ) is the national space agency of Canada, established in 1990 by the ''Canadian Space Agency Act''.
The President of the Canadian Space Agency, president is Lisa Campbell (civil servant), Lisa Campbell, who took ...
(CSA) as one of two
CSA astronaut positions, after a long process selection attended by 5,351 candidates, and moved to
Houston
Houston ( ) is the List of cities in Texas by population, most populous city in the U.S. state of Texas and in the Southern United States. Located in Southeast Texas near Galveston Bay and the Gulf of Mexico, it is the county seat, seat of ...
to be one of 14 members of the
20th NASA astronaut class.
He then graduated from
Astronaut Candidate Training that included
scientific
Science is a systematic discipline that builds and organises knowledge in the form of testable hypotheses and predictions about the universe. Modern science is typically divided into twoor threemajor branches: the natural sciences, which stu ...
and
technical briefings, intensive instruction in
International Space Station systems,
extravehicular activity
Extravehicular activity (EVA) is any activity done by an astronaut in outer space outside a spacecraft. In the absence of a breathable atmosphere of Earth, Earthlike atmosphere, the astronaut is completely reliant on a space suit for environme ...
(EVA),
robotics
Robotics is the interdisciplinary study and practice of the design, construction, operation, and use of robots.
Within mechanical engineering, robotics is the design and construction of the physical structures of robots, while in computer s ...
,
physiological training,
T-38 flight training
Flight training is a course of study used when learning to pilot an aircraft. The overall purpose of primary and intermediate flight training is the acquisition and honing of basic airmanship skills.
Flight training can be conducted under a str ...
,
Russian language
Russian is an East Slavic languages, East Slavic language belonging to the Balto-Slavic languages, Balto-Slavic branch of the Indo-European languages, Indo-European language family. It is one of the four extant East Slavic languages, and is ...
and water and wilderness
survival training. Since graduation, he has been assigned to the Robotics Branch of the
Astronaut Office.
NEEMO 15
On 19 September 2011,
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 ...
announced that Saint-Jacques would serve as an
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 ...
aboard the
Aquarius underwater laboratory during the
NEEMO 15 undersea exploration mission from 17–30 October 2011.
Delayed by stormy weather and high seas, the mission began on 20 October 2011.
On the afternoon of 21 October, Saint-Jacques and his crewmates officially became aquanauts, having spent over 24 hours underwater. NEEMO 15 ended early on 26 October due to the approach of
Hurricane Rina.
CAVES 2013
In 2013, Saint-Jacques served as cavenaut into the
ESA CAVES training in
Sardinia
Sardinia ( ; ; ) is the Mediterranean islands#By area, second-largest island in the Mediterranean Sea, after Sicily, and one of the Regions of Italy, twenty regions of Italy. It is located west of the Italian Peninsula, north of Tunisia an ...
, alongside
Soichi Noguchi
is a Japanese aeronautical engineer and former Japan Aerospace Exploration Agency, JAXA astronaut. His first spaceflight was as a mission specialist aboard STS-114 on 26 July 2005 for NASA's first "return to flight" Space Shuttle program, Spac ...
,
Andreas Mogensen,
Nikolai Tikhonov
Nikolai Aleksandrovich Tikhonov ( – 1 June 1997) was a Soviet Russian-Ukrainian statesman during the Cold War. He served as Chairman of the Council of Ministers from 1980 to 1985, and as a First Deputy Chairman of the Council of Ministers, ...
,
Andrew Feustel and
Michael Fincke.
Expeditions 57/58/59

In May 2016 Saint-Jacques was selected as a member of ISS
Expedition 58/
59, which at the time was scheduled to start in November 2018.
On 3 December 2018, Saint-Jacques launched to the ISS on board
Soyuz MS-11, alongside commander
Oleg Kononenko and fellow flight engineer
Anne McClain.
He became a member of the
Expedition 57 crew for two weeks before transferring to Expedition 58, which officially started on 20 December 2018 when the
Expedition 57 crew left the station. Saint-Jacques, Kononenko and McClain subsequently transferred to Expedition 59 on 14 March 2019 with the arrival of
Soyuz MS-12.
On 8 April 2019, Saint-Jacques conducted his first
spacewalk
Extravehicular activity (EVA) is any activity done by an astronaut in outer space outside a spacecraft. In the absence of a breathable atmosphere of Earth, Earthlike atmosphere, the astronaut is completely reliant on a space suit for environme ...
, becoming the fourth Canadian astronaut to take part in an and the first to do so in 12 years. The spacewalk lasted roughly seven hours.
Saint-Jacques, McClain and Kononenko returned to Earth on board Soyuz MS-11 on 24 June 2019.
Education and earlier career
Saint-Jacques holds a
Bachelor of Engineering
A Bachelor of Engineering (BEng) or a Bachelor of Science in Engineering (BSE) is an undergraduate academic degree awarded to a college graduate majoring in an engineering discipline at a higher education institution.
In the United Kingdom, a Ba ...
in
Engineering Physics
Engineering physics (EP), sometimes engineering science, is the field of study combining pure science disciplines (such as physics, mathematics, chemistry or biology) and engineering disciplines (computer, nuclear, electrical, aerospace, medic ...
from the
École polytechnique de Montréal
École or Ecole may refer to:
* an elementary school in the French educational stages normally followed by secondary education establishments (collège and lycée)
* École (river), a tributary of the Seine flowing in région Île-de-France
* Éco ...
, an affiliated college of
Université de Montréal
The Université de Montréal (; UdeM; ) is a French-language public research university in Montreal, Quebec, Canada. The university's main campus is located in the Côte-des-Neiges neighborhood of Côte-des-Neiges–Notre-Dame-de-Grâce on M ...
, where he graduated in 1993.
He later graduated in 1998 with a
Doctor of Philosophy
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 Postgraduate education, graduate study and original resear ...
in
astrophysics
Astrophysics is a science that employs the methods and principles of physics and chemistry in the study of astronomical objects and phenomena. As one of the founders of the discipline, James Keeler, said, astrophysics "seeks to ascertain the ...
,
[;]
View as HTML
from the
Cavendish Astrophysics Group
The Cavendish Astrophysics Group (formerly the Radio Astronomy Group) is based at the Cavendish Laboratory at the University of Cambridge. The group operates all of the telescopes at the Mullard Radio Astronomy Observatory except for the 32m MERL ...
at
Corpus Christi College, Cambridge
Corpus Christi College (full name: "The College of Corpus Christi and the Blessed Virgin Mary", often shortened to "Corpus") is a Colleges of the University of Cambridge, constituent college of the University of Cambridge. From the late 14th c ...
. Saint-Jacques completed
postdoctoral research
A postdoctoral fellow, postdoctoral researcher, or simply postdoc, is a person professionally conducting research after the completion of their doctoral studies (typically a PhD). Postdocs most commonly, but not always, have a temporary acade ...
at the
National Astronomical Observatory of Japan
The (NAOJ) is an astronomy, astronomical research organisation comprising several facilities in Japan, as well as an observatory in Hawaii and Chile. It was established in 1988 as an amalgamation of three existing research organizations - the To ...
between 1999 and 2001, where he worked on the development and application of the
Mitaka Infrared Interferometer in Japan and the
Subaru Telescope Adaptive Optics System in
Hawaii
Hawaii ( ; ) is an island U.S. state, state of the United States, in the Pacific Ocean about southwest of the U.S. mainland. One of the two Non-contiguous United States, non-contiguous U.S. states (along with Alaska), it is the only sta ...
.
He also holds a
Doctor of Medicine
A Doctor of Medicine (abbreviated MD, from the Latin language, Latin ) is a medical degree, the meaning of which varies between different jurisdictions. In the United States, and some other countries, the ''MD'' denotes a professional degree of ph ...
from
Université Laval
(; English: ''Laval University)'' is a public research university in Quebec City, Quebec, Canada. The university traces its roots to the Séminaire de Québec, founded by François de Montmorency-Laval in 1663, making it the oldest institutio ...
completed in 2005 and completed a
Family medicine
Family medicine is a medical specialty that provides continuing and comprehensive health care for the individual and family across all ages, genders, diseases, and parts of the body. The specialist, who is usually a primary care physician, is ...
residency at
McGill University
McGill University (French: Université McGill) is an English-language public research university in Montreal, Quebec, Canada. Founded in 1821 by royal charter,Frost, Stanley Brice. ''McGill University, Vol. I. For the Advancement of Learning, ...
(2007) (
specializing in
first-line,
isolated medical practice
Medicine is the science and practice of caring for patients, managing the diagnosis, prognosis, prevention, treatment, palliation of their injury or disease, and promoting their health. Medicine encompasses a variety of health care pr ...
).
His broad scientific background includes
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 ...
,
astrophysics
Astrophysics is a science that employs the methods and principles of physics and chemistry in the study of astronomical objects and phenomena. As one of the founders of the discipline, James Keeler, said, astrophysics "seeks to ascertain the ...
and medical training, with international experience in France and Hungary for engineering study and
Lebanon
Lebanon, officially the Republic of Lebanon, is a country in the Levant region of West Asia. Situated at the crossroads of the Mediterranean Basin and the Arabian Peninsula, it is bordered by Syria to the north and east, Israel to the south ...
and
Guatemala
Guatemala, officially the Republic of Guatemala, is a country in Central America. It is bordered to the north and west by Mexico, to the northeast by Belize, to the east by Honduras, and to the southeast by El Salvador. It is hydrologically b ...
for medical study.
Saint-Jacques is affiliated with the Collège des médecins du Québec, the
College of Family Physicians of Canada,
Ordre des ingénieurs du Québec
The Ordre des ingénieurs du Québec (OIQ) is the self-regulatory body that governs Quebec
Quebec is Canada's List of Canadian provinces and territories by area, largest province by area. Located in Central Canada, the province shares b ...
,
International Society for Optical Engineering, and the
Cambridge Philosophical Society
The Cambridge Philosophical Society (CPS) is a scientific society at the University of Cambridge. It was founded in 1819. The name derives from the medieval use of the word philosophy to denote any research undertaken outside the fields of law ...
as a Life Fellow.
Saint-Jacques began his career in 1996 as a
biomedical engineer at the Quebec firm Electromed with secondment to
Lariboisière Hospital, working on the design of
radiological
In physics, radiation is the emission or transmission of energy in the form of waves or particles through space or a material medium. This includes:
* ''electromagnetic radiation'' consisting of photons, such as radio waves, microwaves, infr ...
equipment
Equipment most commonly refers to a set of tool
A tool is an Physical object, object that can extend an individual's ability to modify features of the surrounding environment or help them accomplish a particular task. Although many Tool use by ...
for
angiography
Angiography or arteriography is a medical imaging technique used to visualize the inside, or lumen, of blood vessels and organs of the body, with particular interest in the arteries, veins, and the heart chambers. Modern angiography is perfo ...
and
image analysis
Image analysis or imagery analysis is the extraction of meaningful information from images; mainly from digital images by means of digital image processing techniques. Image analysis tasks can be as simple as reading barcode, bar coded tags or a ...
algorithm
In mathematics and computer science, an algorithm () is a finite sequence of Rigour#Mathematics, mathematically rigorous instructions, typically used to solve a class of specific Computational problem, problems or to perform a computation. Algo ...
s of cineangiography.
From 1994 to 1998, his studies included
theoretical work on
astronomical observation
Observational astronomy is a division of astronomy that is concerned with recording data about the observable universe, in contrast with theoretical astronomy, which is mainly concerned with calculating the measurable implications of physical ...
and design, fabrication and commissioning of instruments for the
Cambridge Optical Aperture Synthesis Telescope and for the
William Herschel Telescope
The William Herschel Telescope (WHT) is a optical and near-infrared reflecting telescope located at the Roque de los Muchachos Observatory on the island of La Palma in the Canary Islands, Spain. The telescope, which is named after William Hersc ...
in the
Canary Islands
The Canary Islands (; ) or Canaries are an archipelago in the Atlantic Ocean and the southernmost Autonomous communities of Spain, Autonomous Community of Spain. They are located in the northwest of Africa, with the closest point to the cont ...
.
During the course of this research under
supervisor
A supervisor, or lead, (also known as foreman, boss, overseer, facilitator, monitor, area coordinator, line-manager or sometimes gaffer) is the job title of a lower-level management position and role that is primarily based on authority over la ...
John E. Baldwin he made several trips abroad on sponsorship from the
Particle Physics and Astronomy Research Council
The Particle Physics and Astronomy Research Council (PPARC) was one of a number of research councils in the United Kingdom. It directed, coordinated and funded research in particle physics and astronomy for the people of the UK. Its head office w ...
, the
Cavendish Astrophysics Group
The Cavendish Astrophysics Group (formerly the Radio Astronomy Group) is based at the Cavendish Laboratory at the University of Cambridge. The group operates all of the telescopes at the Mullard Radio Astronomy Observatory except for the 32m MERL ...
,
Corpus Christi College and the
Cambridge Philosophical Society
The Cambridge Philosophical Society (CPS) is a scientific society at the University of Cambridge. It was founded in 1819. The name derives from the medieval use of the word philosophy to denote any research undertaken outside the fields of law ...
, and decided to pursue
further research experience in Japan.
In 2001, he joined the Astrophysics group at the
Department de
physique,
Université de Montréal
The Université de Montréal (; UdeM; ) is a French-language public research university in Montreal, Quebec, Canada. The university's main campus is located in the Côte-des-Neiges neighborhood of Côte-des-Neiges–Notre-Dame-de-Grâce on M ...
.
Prior to joining the
Canadian Space Program, Saint-Jacques was a
medical doctor
A physician, medical practitioner (British English), medical doctor, or simply doctor is a health professional who practices medicine, which is concerned with promoting, maintaining or restoring health through the study, diagnosis, prognosis ...
and the Co-chief of Medicine at Inuulitsivik Health Centre in
Puvirnituq, Quebec since 2007. He also worked as a
Clinic
A clinic (or outpatient clinic or ambulatory care clinic) is a health facility that is primarily focused on the care of outpatients. Clinics can be privately operated or publicly managed and funded. They typically cover the primary care needs ...
al
Faculty Lecturer
Lecturer is an academic rank within many universities, though the meaning of the term varies somewhat from country to country. It generally denotes an academic expert who is hired to teach on a full- or part-time basis. They may also conduct re ...
for
McGill University's Faculty of Medicine, supervising
medical trainees in
Nunavik
Nunavik (; ; ) is an area in Canada which comprises the northern third of the province of Quebec, part of the Nord-du-Québec region and nearly coterminous with Kativik. Covering a land area of north of the 55th parallel, it is the homelan ...
.
Personal life
Saint-Jacques was born in
Quebec City
Quebec City is the capital city of the Provinces and territories of Canada, Canadian province of Quebec. As of July 2021, the city had a population of 549,459, and the Census Metropolitan Area (including surrounding communities) had a populati ...
and raised in Montreal. Saint-Jacques is married to Dr. Véronique Morin and has three children. He is a lifelong mountaineer, hiker, cyclist, skier, and sailor.
He also holds a
commercial pilot license.
He is fluent in French and English, and has a basic understanding of Russian, Spanish and Japanese.
Academic distinctions
*"1967" Science and Engineering Scholarship,
Natural Sciences and Engineering Research Council of Canada
The Natural Sciences and Engineering Research Council of Canada (NSERC; , CRSNG) is the major federal agency responsible for funding natural sciences and engineering research in Canada. NSERC directly funds university professors and students as ...
(NSERC) (1994–1998)
*Cambridge Commonwealth Trust Honorary Scholar (1994–1998)
*United Kingdom Overseas Research Student Award (1994–1998)
*Postdoctoral Fellowship, Japan Society for Promotion of Science (1999–2001)
*Scholarship,
Canada Millennium (2001–2005)
*
Doctorat ''Honoris Causa'',
École polytechnique de Montréal
École or Ecole may refer to:
* an elementary school in the French educational stages normally followed by secondary education establishments (collège and lycée)
* École (river), a tributary of the Seine flowing in région Île-de-France
* Éco ...
of
Université de Montréal
The Université de Montréal (; UdeM; ) is a French-language public research university in Montreal, Quebec, Canada. The university's main campus is located in the Côte-des-Neiges neighborhood of Côte-des-Neiges–Notre-Dame-de-Grâce on M ...
(2010)
Honors and awards
* Fellow of the
Royal Canadian Geographical Society
The Royal Canadian Geographical Society (RCGS; French: ''Société géographique royale du Canada'') is a Canadian nonprofit educational organization. It has dedicated itself to spreading a broader knowledge and deeper appreciation of Canada, i ...
* Gold Medal of the
Royal Canadian Geographical Society
The Royal Canadian Geographical Society (RCGS; French: ''Société géographique royale du Canada'') is a Canadian nonprofit educational organization. It has dedicated itself to spreading a broader knowledge and deeper appreciation of Canada, i ...
* Special distinction from the
Collège des médecins du Québec
The ''Collège des médecins du Québec'' (CMQ), or Quebec College of Physicians, is a professional organization responsible for setting educational standards for physicians, regulating the practice of medicine, and policing its members at the pro ...
* Officier of the
National Order of Quebec
The National Order of Quebec ( French: ), also known as the Order of Quebec, is a civilian honour for merit in the Canadian province of Quebec. Instituted in 1984 when Lieutenant Governor Jean-Pierre Côté granted royal assent to the (Natio ...
(2020)
* Officer of the
Order of Canada
The Order of Canada () is a Canadian state order, national order and the second-highest Award, honour for merit in the system of orders, decorations, and medals of Canada, after the Order of Merit.
To coincide with the Canadian Centennial, ce ...
(2022)
References
External links
Astronaut Candidate Bio: David Saint-Jacques (09/2009)
*
{{DEFAULTSORT:Saint-Jacques, David
1970 births
Living people
Collège de Montréal alumni
Alumni of Corpus Christi College, Cambridge
Aquanauts
Canadian astronauts
Crew members of the International Space Station
Physicians from Montreal
Physician astronauts
People from Quebec City
People from Saint-Lambert, Quebec
Université Laval alumni
Université de Montréal alumni
Cambridge Commonwealth Trust Scholars
Commercial aviators
Spacewalkers
Officers of the Order of Canada