Criticism of space exploration encompasses various arguments against investing in space programs and missions. Opponents point to the substantial financial costs, suggesting that funds allocated for space exploration could be better spent addressing urgent issues on Earth, such as poverty, healthcare, education, and environmental degradation. Critics express concerns about risks to human life, environmental impacts like potential contamination of celestial bodies, and the possibility of militarizing space, which could exacerbate geopolitical tensions. These critiques reflect the ongoing debate over resource allocation, technological priorities, and the responsibilities of humanity both on Earth and in outer space.
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In 1963, years before the 1969 Apollo 11 Moon landing, German-American critical theorist Hannah Arendt argued: [1]
The conquest of space and the science that made it possible have come perilously close to this point. If they ever should reach it in earnest, the stature of man would not simply be lowered by all standards we know of but have been destroyed.
Throughout the 1960s, Students for a Democratic Society organized anti-NASA protests on college campuses. Sit-ins occurred at Columbia University's Pupin Physics Laboratories and MIT's Instrumentation Laboratory, as both conducted NASA research which was implemented by the United States military in Vietnam. [2] In July 1969, civil rights leader Ralph Abernathy organized a protest at Cape Canaveral (then Cape Kennedy) to oppose the "inhuman priority" of space exploration over tackling poverty and racism. [3] When addressing the crowd, Abernathy said that "[t]he $23 billion we've spent going to the Moon has stolen money the black man needs for job retraining and schools." [4]
Amitai Etzioni wrote in 2018 that space colonization "brings with it an unavoidable subtext of despair", distracting from efforts to halt anthropogenic climate change, arguing that "any serious Mars endeavor will inevitably cut into the drive to save Mother Earth". [5] Some studies suggest that the projected increase in space travel will damage the ozone layer. [6] [7] A single rocket launch produces 300 tonnes of carbon dioxide, staying longer in the upper atmosphere than emissions caused by airplanes or jets. [8] Thomas Fink, however, argues the long-term benefits of space science offset the ecological risks. [9]
Arthur M. Schlesinger Jr. condemned space exploration, labeling it as wasteful. [10] In the lead up to the Apollo program, Congressmen voiced doubts about the costliness of the missions. [11] In 1977, Governor of California Jerry Brown was criticized for prioritizing space programs over addressing social issues. [12]
Alexis C. Madrigal, writing in the Los Angeles Sentinel in 2012, said that [13]
It would appear that the fathers of our nation would allow a few thousand hungry people to die for the lack of a few thousand dollars while they would contaminate the moon and its sterility for the sake of 'progress' and spend billions of dollars in the process, while people are hungry, ill-clothed, poorly educated (if at all).
Haris Durrani, writing in The Nation , argued in 2019 that "[s]paceflight almost invariably involves activities that directly subjugate marginalized peoples". [14] [ which? ] Mark R. Royce, writing for Providence magazine, argued in 2020 that rather than being a non-partisan, inoffensive, and humanistic endeavor, space exploration is "largely irrational, originating at the intersection of the early Cold War arms race, the mass hysteria of the Red Scare, and the utopian worship of technical progress that characterized the mid-twentieth century." [15] Gabrielle Cornish argued in 2019 that the moon landing was "at its core, a territorial conquest" in the context of the Cold War. [16]
Several critics have likened space exploration to settler-colonialism and imperialism [17] [18] , with critics such as Deondre Smiles arguing that the exploration of space could lead to further colonization on Earth, pointing to the controversial construction of observatories in Mauna Kea. [19] Sociologist Zuleyka Zevallos at Swinburne University has criticized the language used within and around space science, writing that "there is no democratic way to colonize other lands" and that "It is about profit, and profit always marginalizes minorities". In contrast, Robert Zubrin of the Mars Society responds that it is different from comparing the history of colonialism on Earth with the establishment of colonies on Mars. [20] [21] [22]
Fulbright scholar and Mars colonization advocate Zahaan Bharmal outlined three hypothetical arguments against human colonization of Mars: (1) that humans will contaminate Mars, (2) that robots have inherent advantages over humans in space exploration, and (3) that issues like climate change, overpopulation, and nuclear war should be prioritized over colonization. While broadly supportive of Mars colonization, Bharmal argues that humans "are perhaps not ready to go to Mars." [23]
Contrary to the common misconception that the American space program in the 60s had a wide base of support, unifying America, belief that the Apollo program was worth the time and money invested peaked at 51% for a few months after the 1969 Moon landing, and was otherwise fluctuating between 35-45%. [24] [25] [26]
The Mars Society is a nonprofit organization that advocates for human exploration and colonization of Mars. It was founded by Robert Zubrin in 1998 and its principles are based on Zubrin's Mars Direct philosophy, which aims to make human missions to Mars as feasible as possible. The Mars Society generates interest in the Mars program by garnering support from the public and through lobbying. Many current and former Mars Society members are influential in the wider spaceflight community, such as Buzz Aldrin and Elon Musk.
Mars Direct is a proposal for a human mission to Mars which purports to be both cost-effective and possible with current technology. It was originally detailed in a research paper by Martin Marietta engineers Robert Zubrin and David Baker in 1990, and later expanded upon in Zubrin's 1996 book The Case for Mars. It now serves as a staple of Zubrin's speaking engagements and general advocacy as head of the Mars Society, an organization devoted to the colonization of Mars.
Robert Zubrin is an American aerospace engineer, author, and advocate for human exploration of Mars. He is also an advocate for U.S. space superiority, writing that "in the 21st century, victory on land, sea or in the air will go to the power that controls space" and that "if we desire peace on Earth, we need to prepare for war in space."
Space exploration is the use of astronomy and space technology to explore outer space. While the exploration of space is currently carried out mainly by astronomers with telescopes, its physical exploration is conducted both by uncrewed robotic space probes and human spaceflight. Space exploration, like its classical form astronomy, is one of the main sources for space science.
Space colonization is the process of establishing human settlements beyond Earth for prestige, commercial and strategic benefits. This is in contrast to space exploration for scientific benefits. Colonialism can involve exploitation of both resources and people by a distant entity.
The Case for Mars: The Plan to Settle the Red Planet and Why We Must is a nonfiction science book by Robert Zubrin, first published in 1996, and revised and updated in 2011.
The Vision for Space Exploration (VSE) was a plan for space exploration announced on January 14, 2004 by President George W. Bush. It was conceived as a response to the Space Shuttle Columbia disaster, the state of human spaceflight at NASA, and as a way to regain public enthusiasm for space exploration.
Colonization of the Moon is a process or concept employed by some proposals for robotic or human exploitation and settlement endeavours on the Moon. Often used as a synonym for its more specific element of settling the Moon, lunar or space colonization as a whole has become contested for perpetuating colonialism and its exploitive logic in space.
Space advocacy is supporting or advocating human activity in outer space. The advocated purposes range from orbital flight, space exploration, commercialization of space and space settlement, to outright space colonization.
The colonization of Mars would exploit Martian territory and resources, possibly enabling the human settlement of Mars. Most Mars colonization concepts focus on settling, but colonization is a broader ethical concept, which international space law has limited, and national space programs have avoided, instead focusing on human missions to Mars for exploring the planet. Currently there are only proposals for Mars colonization and humans have not set foot on Mars yet.
The following outline is provided as an overview of and topical guide to space exploration.
The National Aeronautics and Space Administration (NASA) has proposed several concept moonbases for achieving a permanent presence of humans on the Moon since the late 1950s. Research and exploration of the Moon have been a large focus of the organization since the Apollo program. NASA's peak budget was in 1964–1965, when it comprised 4% of all federal spending in service of the Apollo Moon landing project. Though lunar landings since the conclusion of the Apollo program in 1972 have ceased, interest in establishing a permanent habitation on the lunar surface or beyond low Earth orbit has remained steady. Recently, renewed interest in lunar landing has led to increased funding and project planning. NASA requested an increase in the 2020 budget of $1.6 billion, in order to make another crewed mission to the Moon under the Artemis program by 2025, followed by a sustained presence on the Moon by 2028. A crew was selected for the planned crewed mission, Artemis II, in April 2023.
A moonbase is a human outpost on or below the surface of the Moon. More than a mere site of activity or temporary camp, moonbases are extraterrestrial bases, supporting robotic or human activity, by providing surface infrastructure. Missions to the Moon have realized single-mission bases,, as well as some small permanent infrastructure like lunar laser ranging installations.
The politics of outer space includes space treaties, law in space, international cooperation and conflict in space exploration, international economics, and the hypothetical political impact of any contact with extraterrestrial intelligence.
Mars to Stay missions propose that astronauts sent to Mars for the first time should intend to remain there. Unused emergency return vehicles would be recycled into settlement construction as soon as the habitability of Mars becomes evident to the initial pioneers. Mars to Stay missions are advocated both to reduce cost and to ensure permanent settlement of Mars. Among many notable Mars to Stay advocates, former Apollo astronaut Buzz Aldrin has been particularly outspoken, suggesting in numerous forums "Forget the Moon, Let’s Head to Mars!" and, in June 2013, Aldrin promoted a crewed mission "to homestead Mars and become a two-planet species". In August 2015, Aldrin, in association with the Florida Institute of Technology, presented a "master plan", for NASA consideration, for astronauts, with a "tour of duty of ten years", to colonize Mars before the year 2040. The Mars Underground, Mars Homestead Project / Mars Foundation, Mars One, and Mars Artists Community advocacy groups and business organizations have also adopted Mars to Stay policy initiatives.
The space policy of the Barack Obama administration was announced by U.S. President Barack Obama on April 15, 2010, at a major space policy speech at Kennedy Space Center. He committed to increasing NASA funding by $6 billion over five years and completing the design of a new heavy-lift launch vehicle by 2015 and to begin construction thereafter. He also predicted a U.S.-crewed orbital Mars mission by the mid-2030s, preceded by the Asteroid Redirect Mission by 2025. In response to concerns over job losses, Obama promised a $40 million effort to help Space Coast workers affected by the cancellation of the Space Shuttle program and Constellation program.
Human presence in space is the direct and mediated presence or telepresence of humans in outer space and in a broader sense also on any extraterrestrial astronomical body. Human presence in space, particularly through mediation, can take many physical forms from space debris, uncrewed spacecraft, artificial satellites, space observatories, crewed spacecraft, art in space, to human outposts in outer space such as space stations.
SpaceX Mars colonization program is a planned objective of the company SpaceX and particularly of its founder Elon Musk to colonize Mars. The main element of this ambition is the plan to establish a self-sustained large scale settlement and colony on Mars, claiming self-determination under direct democracy. The main motivation behind this is the belief that the colonization of Mars allows humanity to become multiplanetary and therefore secures the long-term survival of the human species in case of Earth being rid of human life.
Space ethics, astroethics or astrobioethics is a discipline of applied ethics that discusses the moral and ethical implications arising from astrobiological research, space exploration and space flight. It deals with practical contemporary issues like the protection of the space environment and hypothetical future issues pertaining to our interaction with extraterrestrial life forms.