[
]
Alternative characterizations
Beginning in the 2010s, science historian Jordan Bimm argued against White's interpretation that the overview effect is, in Bimm's words, "a reliably produced mental effect—a naturally occurring phenomenon between the environment and the human mind".[ Instead, Bimm asserts that the effect is "both a natural and cultural object" that is variable over particular individuals, divergent cultures, and different time periods.][ Preliminarily, Bimm noted that studies of early test pilots' negative-experience ''break-off phenomenon'' ended in 1973 (displaced by White's "positive conversion narrative"), that astronauts in a "lie to fly" culture feel career pressure to avoid reporting negative psychological reactions, and that individuals already aware of the overview effect may make it a self-fulfilling prophecy.][ He posited that it was Cold War and mastery-of-Earth mentalities of Western technological supremacy that contributed to the rise of borderless-world concepts such as the ]Gaia hypothesis
The Gaia hypothesis (), also known as the Gaia theory, Gaia paradigm, or the Gaia principle, proposes that living organisms interact with their inorganic surroundings on Earth to form a synergistic and self-regulating, complex system that helps ...
, spaceship Earth, and the Blue Marble
''The Blue Marble'' is an image of Earth taken on December 7, 1972, from a distance of around from the planet's surface. Taken by the crew of the Apollo 17 spacecraft on its way to the Moon, it is one of the most reproduced images in history ...
.[
Bimm expressed concern over White's perception that the effect embodies a natural imperative for humans to pursue space travel and colonization, Bimm saying the attitude resembles the 18th century American ]colonialist
Colonialism is a practice or policy of control by one people or power over other people or areas, often by establishing colonies and generally with the aim of economic dominance. In the process of colonisation, colonisers may impose their relig ...
, expansionist
Expansionism refers to states obtaining greater territory through military empire-building or colonialism.
In the classical age of conquest moral justification for territorial expansion at the direct expense of another established polity (who ...
concept of manifest destiny
Manifest destiny was a cultural belief in the 19th-century United States that American settlers were destined to expand across North America.
There were three basic tenets to the concept:
* The special virtues of the American people and th ...
.[ Bimm warned of ]hubris
Hubris (; ), or less frequently hybris (), describes a personality quality of extreme or excessive pride or dangerous overconfidence, often in combination with (or synonymous with) arrogance. The term ''arrogance'' comes from the Latin ', meani ...
underlying a perception of having achieved a new level of enlightenment that he called the "overlord
An overlord in the English feudal system was a lord of a manor who had subinfeudated a particular manor, estate or fee, to a tenant. The tenant thenceforth owed to the overlord one of a variety of services, usually military service or s ...
effect".[
]
History
English astronomer Fred Hoyle
Sir Fred Hoyle FRS (24 June 1915 – 20 August 2001) was an English astronomer who formulated the theory of stellar nucleosynthesis and was one of the authors of the influential B2FH paper. He also held controversial stances on other sc ...
wrote in 1948 that, "once a photograph of the Earth, taken from the outside, is available, a new idea as powerful as any in history will be let loose".[ After ]Apollo 8
Apollo 8 (December 21–27, 1968) was the first crewed spacecraft to leave low Earth orbit and the first human spaceflight to reach the Moon. The crew orbited the Moon ten times without landing, and then departed safely back to Earth. The ...
astronaut William Anders
William Alison Anders (born 17 October 1933) is a retired United States Air Force (USAF) major general, former electrical engineer, nuclear engineer, NASA astronaut, and businessman. In December 1968, he was a member of the crew of Apollo 8, t ...
' December 1968 ''Earthrise
''Earthrise'' is a photograph of Earth and some of the Moon's surface that was taken from lunar orbit by astronaut William Anders on December 24, 1968, during the Apollo 8 mission. Nature photographer Galen Rowell described it as "the most infl ...
'' photograph of the Earth from lunar orbit
In astronomy, lunar orbit (also known as a selenocentric orbit) is the orbit of an object around the Moon.
As used in the space program, this refers not to the orbit of the Moon about the Earth, but to orbits by spacecraft around the Moon. T ...
, the Apollo missions
The Apollo program was a United States human spaceflight program carried out from 1961 to 1972 by the National Aeronautics and Space Administration (NASA), which landed the first astronauts on the Moon. The program used the Saturn IB and Saturn ...
were credited with inspiring the environmental movement
The environmental movement (sometimes referred to as the ecology movement), also including conservation and green politics, is a diverse philosophical, social, and political movement for addressing environmental issues. Environmentalists a ...
, the first Earth Day being held in April 1970.[ Hoyle said that people suddenly seemed to care about protecting Earth's natural environment, though others attribute that awareness to Rachel Carson's 1962 book '']Silent Spring
''Silent Spring'' is an environmental science book by Rachel Carson. Published on September 27, 1962, the book documented the environmental harm caused by the indiscriminate use of pesticides. Carson accused the chemical industry of spreading d ...
'' and reactions to several environmental disasters in the 1960s.[
The term ''overview effect'' was coined by self-described "space philosopher" Frank White, who said he thought he first had "a mild experience" of the effect while flying across the country and looking out the aircraft's window.][ That experience led him to imagine living in an ]O'Neill cylinder
An O'Neill cylinder (also called an O'Neill colony) is a space settlement concept proposed by American physicist Gerard K. O'Neill in his 1976 book '' The High Frontier: Human Colonies in Space''. O'Neill proposed the colonization of space for ...
(habitat in space), which inspired him to become involved with the Space Studies Institute
Space Studies Institute is a not-for-profit organization that was founded in 1977 by Princeton University Professor Gerard K. O'Neill.
In 2009 SSI moved its operations from its long-term base in Princeton, New Jersey, to Mojave, California ...
and begin speaking with astronauts.[
White's astronaut interviews confirmed the importance of the difference between intellectual knowledge versus experience, of perceiving the "striking thinness of the atmosphere", of thinking of ourselves interconnected and part of the Earth as an organic system, and that we as different people "are all in this together".][ The first public use of the term was in a poster in at a Space Studies Institute meeting in 1985.][ Eventually, White wrote about the effect in his book ''The Overview Effect — Space Exploration and Human Evolution'' (1987),][ which has a fourth edition (2021).][ White's work did not attain broad influence until the 2010s—a period of increased societal divisions and a new prospect of private space travel.][
]
Accounts
Michael Collins,[
]Yuri Gagarin
Yuri Alekseyevich Gagarin; Gagarin's first name is sometimes transliterated as ''Yuriy'', ''Youri'', or ''Yury''. (9 March 1934 – 27 March 1968) was a Soviet pilot and cosmonaut who became the first human to journey into outer space. Tr ...
,[
Ron Garan,][
]Chris Hadfield
Chris Austin Hadfield (born August 29, 1959) is a Canadian retired astronaut, engineer, fighter pilot, and musician. The first Canadian to perform extravehicular activity in outer space, he has flown two Space Shuttle missions and also ser ...
,[
]James Irwin
James Benson Irwin (March 17, 1930 – August 8, 1991) was an American astronaut, aeronautical engineer, test pilot, and a United States Air Force Aviator, pilot. He served as Apollo Lunar Module pilot for Apollo 15, the fourth human lunar ...
,[
]Mae Jemison
Mae Carol Jemison (born October 17, 1956) is an American engineer, physician, and former NASA astronaut. She became the first black woman to travel into space when she served as a mission specialist aboard the Space Shuttle ''Endeavour''. Je ...
,[
Scott Kelly,][
]André Kuipers
André Kuipers (; born 5 October 1958) is a Dutch physician and ESA astronaut. He became the second Dutch citizen, third Dutch-born and fifth Dutch-speaking astronaut upon launch of Soyuz TMA-4 on 19 April 2004. Kuipers returned to Earth aboard ...
,[
]Jerry Linenger
Jerry Michael Linenger (born January 16, 1955) is a retired Captain in the United States Navy Medical Corps, and a former NASA astronaut who flew on the Space Shuttle and Space Station Mir.
Background
Born January 16, 1955, and raised in Eas ...
,[
]Mike Massimino
Michael James Massimino (born August 19, 1962) 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 li ...
,[
]Anne McClain
Anne Charlotte McClain (born June 7, 1979) is a lieutenant colonel in the U.S. Army, engineer and a NASA astronaut.
Her call sign, "Annimal", dates back to her bruising rugby days; she also uses the call sign in her Twitter handle, AstroAnnima ...
,[
]Leland Melvin Leland may refer to:
Places United States
* Leland, Illinois, a village
* Leland, Iowa, a city
* Leland, Michigan, an unincorporated community and census-designated place
* Leland, Mississippi, a city
* Leland, North Carolina, a town
* Leland, O ...
,[
]Edgar Mitchell
Edgar Dean Mitchell (September 17, 1930 – February 4, 2016) was a United States Navy officer and aviator, test pilot, aeronautical engineer, ufologist, and NASA astronaut. As the Lunar Module Pilot of Apollo 14 in 1971 he spent nine h ...
,[
]Rusty Schweickart
Russell Louis "Rusty" Schweickart (also Schweikart; born October 25, 1935) is an American aeronautical engineer, and a former NASA astronaut, research scientist, U.S. Air Force fighter pilot, as well as a former business executive and govern ...
,[
]William Shatner
William Shatner (born March 22, 1931) is a Canadian actor. In a career spanning seven decades, he is best known for his portrayal of James T. Kirk in the ''Star Trek'' franchise, from his 1965 debut as the captain of the starship ''Enterpri ...
,[ and
]Nicole Stott
Nicole Marie Passonno Stott (born November 19, 1962) is an American engineer and a retired NASA astronaut. She served as a Flight Engineer on ISS Expedition 20 and Expedition 21 and was a Mission Specialist on STS-128 and STS-133. After 27 yea ...
[
are among those reported to have experienced the effect.
Michael Collins (]Apollo 11
Apollo 11 (July 16–24, 1969) was the American spaceflight that first landed humans on the Moon. Commander Neil Armstrong and lunar module pilot Buzz Aldrin landed the Apollo Lunar Module ''Eagle'' on July 20, 1969, at 20:17 UTC, a ...
; 1969) said that "the thing that really surprised me was that it arth
Arth is a village, a town, and a municipality in Schwyz District in the canton of Schwyz in Switzerland.
The municipality consists of the villages Arth, Oberarth, and Goldau. The four settlements Rigi Kulm, Rigi First, Rigi Klösterli, and Ri ...
projected an air of fragility. And why, I don't know. I don't know to this day. I had a feeling it's tiny, it's shiny, it's beautiful, it's home, and it's fragile.[
Edgar Mitchell (]Apollo 14
Apollo 14 (January 31, 1971February 9, 1971) was the eighth crewed mission in the United States Apollo program, the third to land on the Moon, and the first to land in the lunar highlands. It was the last of the " H missions", landings at s ...
; 1971) described it as an "explosion of awareness" and an "overwhelming sense of oneness and connectedness... accompanied by an ecstasy... an epiphany".[
William Shatner (]Blue Origin NS-18
Blue Origin NS-18 was a sub-orbital spaceflight mission operated by Blue Origin that launched on 13 October 2021. The mission was the eighteenth flight of the company's New Shepard integrated launch vehicle and spacecraft. It was the second cr ...
, 2021) said immediately after landing that "everybody in the world needs to do this. ... The covering of blue was... the sheet, this blanket, this comforter of blue that we have around us... And then suddenly you shoot through it... as though you whip off a sheet off you when you’re asleep, and you’re looking into blackness, into black ugliness, and you look down, there’s the blue down there, and the black up there and it’s... Mother Earth and comfort, and there is—is there death? I don’t know".[
]
Lasting impact
Researchers have recognized that awe
Awe is an emotion comparable to wonder but less joyous. On Robert Plutchik's wheel of emotions awe is modeled as a combination of surprise and fear.
One dictionary definition is "an overwhelming feeling of reverence, admiration, fear, e ...
-based experiences—such as interaction with nature, religious or spiritual or mystical experiences, meditation, and peak and flow experiences during high task performance—can change a person and promote the feeling of unity or interconnectedness.[ Besides being an enjoyable experience, such phenomena can have short and long-term positive outcomes such as increased well-being, pro-social and pro-environmental attitudes, and improved physical health.][ The self-transcendent experience can cause long-term changes in personal outlook, and can influence peoples' very ]sense of self
In the psychology of self, one's self-concept (also called self-construction, self-identity, self-perspective or self-structure) is a collection of beliefs about oneself. Generally, self-concept embodies the answer to the question ''"Who am I? ...
by affecting their self-schema
The self-schema refers to a long lasting and stable set of memories that summarize a person's beliefs, experiences and generalizations about the self, in specific behavioral domains. A person may have a self-schema based on any aspect of themse ...
[ ("the particular framework through which (people) imagine themselves in relation to the world").][
Specifically, Frank White noted that upon return, some astronauts became involved in humanitarian activities, or became artists, with astronaut Edgar Mitchell founding the ]Institute of Noetic Sciences
The Institute of Noetic Sciences (IONS) is an American non-profit parapsychological research institute. It was co-founded in 1973 by former astronaut Edgar Mitchell,Pfeffer, Elizabeth''Stars aligned: Astronaut's mission seeks to answer life's big ...
.[ Though Yaden ''et al.'' (2016) noted that the experience can be ]transformative
In United States copyright law, transformative use or transformation is a type of fair use that builds on a copyrighted work in a different manner or for a different purpose from the original, and thus does not infringe its holder's copyright. ...
,[ White said in 2019 that generally there was no "dramatic transformation" or "marching in peace parades"; that the lasting effect was more subtle.][
A 2018 questionnaire survey of 39 astronauts and cosmonauts found that humanistic changes predominated over spiritual changes.][ In particular, the survey found a moderate degree of change in the Perceptions of Earth subscale (Earth as "a beautiful, fragile object to be treasured"), which significantly correlated with subsequent involvement in environmental causes.][ In contrast, the survey found "no to very small change" in the Spiritual Change subscale, which the researchers said likely reflected established pre-launch values.][
Immediately after his October 2021 ]Blue Origin
Blue Origin, LLC is an American privately funded aerospace manufacturer and sub-orbital spaceflight services company headquartered in Kent, Washington. Founded in 2000 by Jeff Bezos, the founder and executive chairman of Amazon, the company is ...
flight, William Shatner
William Shatner (born March 22, 1931) is a Canadian actor. In a career spanning seven decades, he is best known for his portrayal of James T. Kirk in the ''Star Trek'' franchise, from his 1965 debut as the captain of the starship ''Enterpri ...
told founder Jeff Bezos
Jeffrey Preston Bezos ( ;; and Robinson (2010), p. 7. ''né'' Jorgensen; born January 12, 1964) is an American entrepreneur, media proprietor, investor, and commercial astronaut. He is the founder, executive chairman, and former preside ...
, "what you have given me is the most profound experience. I hope I never recover from this. I hope that I can maintain what I feel now".[ However, in October 2022 he recounted that it took hours for him to realize why he wept after stepping out of the spacecraft: "I realized I was in grief for the Earth".][ He later said that "I saw more clearly than I have... (the) slow death of Earth and we on it".][ His biography ''Boldly Go'' recounted that "it was among the strongest feelings of grief I have ever encountered. The contrast between the vicious coldness of space and the warm nurturing of Earth below filled me with overwhelming sadness. Every day, we are confronted with the knowledge of further destruction of Earth at our hands... It filled me with dread. My trip to space was supposed to be a celebration; instead, it felt like a funeral."][
At one point the ]Skylab 4
Skylab 4 (also SL-4 and SLM-3) was the third crewed Skylab mission and placed the third and final crew aboard the first American space station.
The mission began on November 16, 1973, with the launch of Gerald P. Carr, Edward Gibson, and Willia ...
(1970s) crew refused to work, asserting, in the flight director’s words, "their needs to reflect, to observe, to find their place amid these baffling, fascinating, unprecedented experiences".[ This event, plus research indicating that actively photographing the Earth has positive psychological effects, caused Yaden ''et al.'' to posit that studying the overview effect might improve understanding of psychological well-being in isolated, confined, extreme (ICE) environments such as space flight.][
Early photos of Earth taken from space have inspired a mild version of the overview effect in earthbound viewers.][ The images became prominent symbols of environmental concern and have been credited for raising the public's consciousness about the fragility of Earth and expanding concern for long-term survival on a finite planet.][
The accumulating experience of astronauts and space tourists inspires in many of them a strong desire to protect the Earth by actively communicating their broadened perspective, for example by speaking at international climate summits.][ ]Virgin Galactic
Virgin Galactic is an American spaceflight company founded by Richard Branson and his British Virgin Group retains an 11.9% stake through Virgin Investments Limited. It is headquartered in California, and operates from New Mexico. The company ...
officials specifically cite the overview effect as a motivation for carrying people to the edge of space, to fundamentally change the way people think about their home world.[ Critics note, however, that the space travel needed to personally experience the full overview effect, itself involves significant environmental pollution.][ A less polluting approach is to simulate the effect on Earth, with virtual reality technology.][
]
Simulating the effect
Researchers have found that virtual reality
Virtual reality (VR) is a simulated experience that employs pose tracking and 3D near-eye displays to give the user an immersive feel of a virtual world. Applications of virtual reality include entertainment (particularly video games), e ...
(VR) technology elicits components of awe-based experiences and can induce minor cognitive shifts in participants' world views similar to those of the overview effect.[ Perceived safety, personal background and familiarity with the environment, and induction of a small visceral fear reaction, were found to be key contributors to the immersive experience.][ VR studies through 2019 had not observed a transformative experience on a scale similar to the overview effect itself, but VR experience can trigger profound emotional responses such as awe.][
A 2019 study found that a virtual experience invoked "minor transformative experiences in some participants", including appreciation of beauty and vastness, realization of interconnectedness, and a potential intent to change one’s behavior.][ Recognizing the relatively early state of VR technology, the researchers urged using knowledge of profound transformative experiences to motivate the design of VR installations, and thereafter study the VR experience itself as its own phenomenon.][
On December 24, 2018—the fiftieth anniversary of the first day on which ]humans
Humans (''Homo sapiens'') are the most abundant and widespread species of primate, characterized by bipedalism and exceptional cognitive skills due to a large and complex brain. This has enabled the development of advanced tools, culture, ...
saw an earthrise
''Earthrise'' is a photograph of Earth and some of the Moon's surface that was taken from lunar orbit by astronaut William Anders on December 24, 1968, during the Apollo 8 mission. Nature photographer Galen Rowell described it as "the most infl ...
with their own eyes—the Spacebuzz project was unveiled in Hilversum
Hilversum () is a city and municipality in the province of North Holland, Netherlands. Located in the heart of the Gooi, it is the largest urban centre in that area. It is surrounded by heathland, woods, meadows, lakes, and smaller towns. Hil ...
, Netherlands.[ Within a mobile, rocket-shaped vehicle more than in length, Spacebuzz's nine moving seats and ]virtual reality
Virtual reality (VR) is a simulated experience that employs pose tracking and 3D near-eye displays to give the user an immersive feel of a virtual world. Applications of virtual reality include entertainment (particularly video games), e ...
(VR) headsets simulate spaceflight in an experience designed especially for children.[
Researchers at the ]University of Missouri
The University of Missouri (Mizzou, MU, or Missouri) is a public land-grant research university in Columbia, Missouri. It is Missouri's largest university and the flagship of the four-campus University of Missouri System. MU was founded ...
tried to reproduce the experience with a water-filled flotation tank, half a tonne of Epsom salts, and a waterproof VR headset.[
"The Infinite" provides an hour-long simulation of being on the ]International Space Station
The International Space Station (ISS) is the largest Modular design, modular space station currently in low Earth orbit. It is a multinational collaborative project involving five participating space agencies: NASA (United States), Roscosmos ( ...
using 360-degree, 3D, astronaut-recorded footage from the VR film '' Space Explorers: The ISS Experience.''[ Visitors share a 12,500 square foot (1150 square meter) area allowing them to physically explore the ISS and look outside.][
A three-dimensional model of the Earth in diameter, created from detailed NASA imagery and appearing to float in the air, toured the U.K. in 2022, the installation "aim(ing) to create a sense of the Overview Effect".][
]
Other names
The overview effect has been referred to as the ''big picture effect'' (Edgar Mitchell
Edgar Dean Mitchell (September 17, 1930 – February 4, 2016) was a United States Navy officer and aviator, test pilot, aeronautical engineer, ufologist, and NASA astronaut. As the Lunar Module Pilot of Apollo 14 in 1971 he spent nine h ...
),[ ''orbital perspective'' (]Ronald J. Garan Jr.
Ronald John Garan Jr. (born October 30, 1961) is a retired NASA astronaut. After graduating from State University of New York College at Oneonta in 1982, he joined the Air Force, becoming a Second Lieutenant in 1984. He became an F-16 pilot, a ...
),[ and ''the astronaut's secret'' (]Albert Sacco
Albert Sacco Jr. (born May 3, 1949) is an American chemical engineer who flew as a Payload Specialist on the Space Shuttle ''Columbia'' on Shuttle mission STS-73 in 1995.
Born in Boston, Massachusetts, Sacco completed a B.S. degree in chemical ...
).[
Referring to how profound Mitchell's experience on the moon was—distinguished from experiences in ]low earth orbit
A low Earth orbit (LEO) is an orbit around Earth with a period of 128 minutes or less (making at least 11.25 orbits per day) and an eccentricity less than 0.25. Most of the artificial objects in outer space are in LEO, with an altitude never m ...
—author Frank White called Mitchell's experience ''universal insight'' as it had a more universal perspective.[
]
Related effects
A 1957 article in '' The Journal of Aviation Medicine'' studied the ''break-off phenomenon,'' which it defined as "a feeling of physical separation from the earth when piloting an aircraft at high altitude".[ Main precipitating factors were concluded to be: flying alone, at high altitude, with relatively little to do.][ Researchers summarized pilots' descriptions as "a feeling of being isolated, detached, or separated physically from the earth" or as a perception of "somehow losing their connection with the world".][ Individual reactions ranged from exhilaration or feeling nearer to God, to anxiety, fear, or loneliness.][ Scientific literature covering the break-off phenomenon ended in 1973.][
Anthropologist Deana L. Weibel introduced the term ''ultraview effect'' as a response to an unobscured view of stars, an effect that she concluded was experienced more rarely than the overview effect.][ Contrasted from the overview effect's sense of connection, the ultraview effect responds to the ''limitations'' of our knowledge, causing "a transformative sense of incomprehension and a feeling of shrinking or self-diminution".][
Frank White posited the term ''Copernicus Perspective''—awareness of being part of the ]Solar System
The Solar System Capitalization of the name varies. The International Astronomical Union, the authoritative body regarding astronomical nomenclature, specifies capitalizing the names of all individual astronomical objects but uses mixed "Solar ...
when one is on another planet.[
Science historian Jordan Bimm described how the concept shares similarities with the British concept of the sublime—an experience associated with views from high mountains.][
]
Notes
See also
* Collective consciousness
Collective consciousness, collective conscience, or collective conscious (french: conscience collective) is the set of shared beliefs, ideas, and moral attitudes which operate as a unifying force within society.''Collins Dictionary of Sociolog ...
* Earth in culture
The cultural perspective on Earth, or the world, varies by society and time period. Religious beliefs often include a creation belief as well as personification in the form of a deity. The exploration of the world has modified many of the per ...
* Earth phase
* Effect of spaceflight on the human body
Venturing into the environment of space can have negative effects on the human body. Significant adverse effects of long-term weightlessness include muscle atrophy and deterioration of the skeleton ( spaceflight osteopenia). Other significant ef ...
* Extraterrestrial sky
In astronomy, an extraterrestrial sky is a view of outer space from the surface of an astronomical body other than Earth.
The only extraterrestrial sky that has been directly observed and photographed by astronauts is that of the Moon. The ski ...
* ''Pale Blue Dot
''Pale Blue Dot'' is a photograph of planet Earth taken on February 14, 1990, by the ''Voyager 1'' space probe from a record distance of about kilometers ( miles, 40.5 AU), as part of that day's ''Family Portrait'' series of images of the ...
''
* Scale (analytical tool)
In the study of complex systems and hierarchy theory, the concept of scale refers to the combination of (1) the level of analysis (for example, analyzing the whole or a specific component of the system); and (2) the level of observation (for exa ...
* Space For Humanity
* Spaceship Earth
References
External links
Overview Institute
''Overview''
short film from Planetary Collective
''Speech on The Overview Effect and its Importance in Civilization''
5 minute talk by JP Chastain at Ignite Boise (2012)
{{Spaceflight, state=expanded
Articles containing video clips
Concepts in aesthetics
Concepts in ethics
Concepts in philosophical anthropology
Concepts in the philosophy of history
Concepts in the philosophy of mind
Concepts in the philosophy of science
Consciousness
Consciousness studies
Egalitarianism
Ethics
History of ethics
History of philosophy
History of spaceflight
Human spaceflight
Humanism
Interculturalism
Philosophical concepts
Philosophy of life
Political history
Psychological concepts
Religious practices
Spaceflight concepts
Spirituality
Universalism