Space trade is hypothetical interplanetary or interstellar trade. It has been discussed by futurists and other pundits since the 1960s.
Several people have considered trade within the Solar System as one of the ways in which the colonization of Mars is both important and can be made self-sufficient. Robert Zubrin, of Lockheed Martin Astronautics, in a paper on the economic viability of colonizing Mars, [1] puts forward interplanetary trade as one way in which a hypothetical Martian colony could become rich, pointing out that the energy relationships between the orbits of Earth, Mars, and the asteroid belt place Mars in a far better position for involvement in any future asteroid mining trade than Earth.
Jim Plaxco, in a paper putting forward the case for colonizing Mars, [2] mentions that Phobos and Deimos can be developed, in the long term, from being short-term testbeds for the techniques of asteroid mining and staging posts for colonization of Mars itself, into key trading posts in interplanetary trade, again because of their favourable position within the Solar System.
It is theorized that if different locations within the Solar System become inhabited by humans, they would need to transport valuable resources between different planets, moons and asteroids. [1] The asteroid belt is theorized to become a source of valuable ores that may develop into industrial asteroid mining infrastructure, whereas Earth may export hi-tech production. [1] The factor of energy-efficiency of interplanetary transportation may become very important to estimate economic value of a trade route.
John Hickman identified the principal obstacle to developing space trade as the distances involved, which will reduce all or nearly all trade to the exchange of intangible goods. That threatens the possibility of conducting business in a genuinely common currency and of enforcing debt agreements incurred by governments. [3]
A 2009 article explored tax implications. [4]
Building high-capacity commercial spaceports may require connection with other modes of transportation, such as railroad or sea, which would make spaceports another dimension of national economy. One analysis of commercial, technical, and logistical concerns for an operating spaceport, formulated by the Spaceport Technology Development Office of NASA, is Vision Spaceport. [5]
Interstellar travel is the hypothetical travel of spacecraft between star systems. Due to the vast distances between the Solar System and nearby stars, interstellar travel is not practicable with current propulsion technologies.
Interplanetary spaceflight or interplanetary travel is the crewed or uncrewed travel between stars and planets, usually within a single planetary system. In practice, spaceflights of this type are confined to travel between the planets of the Solar System. Uncrewed space probes have flown to all the observed planets in the Solar System as well as to dwarf planets Pluto and Ceres, and several asteroids. Orbiters and landers return more information than fly-by missions. Crewed flights have landed on the Moon and have been planned, from time to time, for Mars, Venus and Mercury. While many scientists appreciate the knowledge value that uncrewed flights provide, the value of crewed missions is more controversial. Science fiction writers propose a number of benefits, including the mining of asteroids, access to solar power, and room for colonization in the event of an Earth catastrophe.
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. This is commonly for prestige, commercial or strategic benefit. This is in contrast to space exploration for scientific benefit. Colonialism can involve exploitation of both resources and people by a distant entity.
Terraforming or terraformation ("Earth-shaping") is the hypothetical process of deliberately modifying the atmosphere, temperature, surface topography or ecology of a planet, moon, or other body to be similar to the environment of Earth to make it habitable for humans to live on.
A space settlement is a settlement in outer space, sustaining more extensively habitation facilities in space than a general space station or spacecraft. Possibly including closed ecological systems, its particular purpose is permanent habitation.
Mining the Sky: Untold Riches from the Asteroids, Comets, and Planets, is a 1997 book by University of Arizona Planetary Sciences professor emeritus John S. Lewis that describes possible routes for accessing extraterrestrial resources, either for use on Earth or for enabling space colonization. Each issue or proposal is evaluated for its effects on humanity, physics and economic feasibility based on planetary science. For instance, Chapter 5 exhaustively catalogs the types of near-Earth objects, assessing both the harms likely from possible collisions with Earth on the one hand, and their potential for profitable exploitation on the other.
The Millennial Project: Colonizing the Galaxy in Eight Easy Steps by Marshall T. Savage is a book in the field of exploratory engineering that gives a series of concrete stages the author believes will lead to interstellar colonization. Many specific scientific and engineering details are presented, as are numerous issues involved in space colonization.
Asteroid mining is the hypothetical extraction of materials from asteroids and other minor planets, including near-Earth objects.
The colonization of Mars is the proposed process of establishing and maintaining control of Martian land for exploitation and the possible settlement of Mars. Most 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 mission to Mars for exploring the planet. Currently there only proposals for Mars colonization exist, and no crewed visit has occurred.
Space manufacturing or In-space manufacturing is the fabrication, assembly or integration of tangible goods beyond Earth's atmosphere, involving the transformation of raw or recycled materials into components, products, or infrastructure in space, where the manufacturing process is executed either by humans or automated systems by taking advantage of the unique characteristics of space. Synonyms of Space/In-space manufacturing are In-orbit manufacturing, Off-Earth manufacturing, Space-based manufacturing, Orbital manufacturing, In-situ manufacturing, In-space fabrication, In-space production, etc. In-space manufacturing is a part of the broader activity of in-space servicing, assembly and manufacturing (ISAM) and is related to in situ resource utilization (ISRU).
An interstellar war is a hypothetical space war between combatants from different planetary systems. The concept provides a common plot device in science fiction, especially in the space opera subgenre. In contrast, the term intergalactic war refers to war between combatants from different galaxies, and interplanetary war refers to war between combatants from different planets of the same planetary system.
Asteroids, including those in the asteroid belt, have been suggested as possible sites of space colonization. Motives include the survival of humanity, and the specific economic opportunity for asteroid mining. Obstacles include transportation distance, temperature, radiation, lack of gravity, and psychological issues.
In space exploration, in situ resource utilization (ISRU) is the practice of collection, processing, storing and use of materials found or manufactured on other astronomical objects that replace materials that would otherwise be brought from Earth.
The following outline is provided as an overview of and topical guide to space exploration.
Deep-space exploration is the branch of astronomy, astronautics, and space technology that is involved with exploring the distant regions of outer space. However, little consensus has been reached on the meaning of "distant" regions. In some contexts, it is used to refer to interstellar space. The International Telecommunication Union defines deep space to start at a distance of 2 million km (1.2 million mi) from Earth's surface. NASA's Deep Space Network has variously used criteria of 16,000–32,000 km (9,900–19,900 mi) from Earth. Physical exploration of space is conducted both by human spaceflights and by robotic spacecraft.
The following outline is provided as an overview of and topical guide to the Solar System:
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