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Private industries have helped drop the cost of launching rockets, satellites and other equipment into space to historic lows. That has boosted interest in developing space—both for such as silicon for solar panels and oxygen for , as well as potentially . But the rules are not clear about who would profit if, for instance, a U.S. company like SpaceX colonized Mars or established a moon base.

At the moment, no company—or nation—is yet ready to claim or take advantage of private property in space. But the space industry could change quickly. are already planning to to find raw materials like water; Helium-3, which is potentially useful in fusion nuclear reactors; and rare earth elements, which are electronics. What they might find, and how easy the material is to bring back to Earth, remains to be seen.

Anticipating additional commercial interest, the Trump administration has through following a 2015 law change for how those companies might profit from operations on the moon, asteroids and other planets. Those rules conflict with a the U.S. has generally followed but never formally joined. The administration also is planning to encourage other nations to adopt this new U.S. perspective on space mining.

As a – and a proud – believe the international community could find new ways to peacefully govern space from examples here on our planet, including deep seabed mining and Antarctica.

Who owns space?

In general, regions of Earth beyond any one nation's control—like the high seas, the atmosphere and Antarctica—have been viewed by the international community as . That principle applied to space, too, until President Donald Trump's executive order that space was any sort of "global commons" shared among all nations and peoples of the Earth.

This step is the latest in a series of decisions by U.S. presidents over the last 40 years that have signaled these types of resources, especially through an international body like the United Nations.

That is one reason why the U.S. has not ratified the , for example, which was agreed to in 1982 and took effect in 1994.

A similar story played out regarding the moon.

Moon Treaty and international space law

Over the decades, the U.S. has sought to use its in various ways. President John F. Kennedy, for example, considered turning the Apollo moon-landing program into a to promote peace between the superpowers.

Lyndon Johnson's administration similarly saw space as a shared region, and in 1967 signed the , which proclaimed that space was the "province of all mankind." However, that treaty didn't say anything about mining on the moon—so when the U.S. landed there in 1969, the international community called for regulations.

The U.N.'s eventual declared the moon the "," and sought shared international control over resources found there.

However, that plan wasn't very popular among advocates for a more commercial final frontier. In the U.S., a nonprofit group in favor of space colonization , fearing it would discourage private investment. The treaty failed ratification in the U.S. Senate. Only have, in fact, ratified the Moon Treaty among them Mexico and Australia, none of them major space-faring powers. But even though many countries seem to agree that the Moon Treaty isn't the right way to handle lunar property rights, that doesn't mean they agree on what they actually should do.

Finding profit in space

As space launches got cheaper, the , passed in 2015, gave U.S. companies the right to mine materials from asteroids for profit. That conflicts with the shared-resources view of the .

Since then, there have been further political efforts to remove perceived legal hurtles to space mining. In 2017, a Republican congressman sought to formalize the U.S. rejection of space as any sort of common property, that said, "." That bill died, but it was and is currently awaiting action in the House.

A new space race?

Allowing private control of space resources could launch a new space race, in which wealthy companies, likely from developed countries, could take control of crucial resources—like , which could supply water for people or to fuel rockets—and profit handsomely.

That, in turn, would increase the likelihood of a military arms race, with the , and developing weapons to defend their citizens' space assets.

Applying lessons from the deep, and Antarctica

In finding common ground, and charting a path forward, it is useful to consider lessons from other frontiers. The Moon Treaty tried to set up a system for sharing the benefits of moon mining similar to how an existing system handled mining the deep sea.

The is a U.N. body that lets nations and private firms develop resources from the deep seabed so long as they share the proceeds, particularly with landlocked developing nations. It is recognized by more than 160 nations, though the U.S. is a .

Environmental groups have criticized the Authority for not doing enough to , but the overall model of sharing the wealth from a collective resource could still be useful. For instance, the Authority's participants are working on a that would emphasize environmental sustainability. Those provisions could be mirrored on other worlds.

Similarly, the global management of Antarctica has useful parallels with the moon. The entire continent is governed by a since 1959 by freezing national territorial claims and barring military and commercial activities. Instead, the continent is reserved for

A similar approach could become the core of a second attempt at a Moon Treaty, and could even accommodate a provision for commercial activity along the lines of the deep-sea mining rules. In so doing, we must also learn what has not worked in the past, such as ignoring the interests of the private sector and the developing world. Advocates are correct that defining property rights is an important precursor, but it is not a binary choice between a "global commons" or private property, rather there are a universe of that deserve consideration and that could provide a proper foundation for sustainable development.

But coming to an international agreement would take time, energy and a widespread willingness to view resources as common assets that should be collectively governed. All those ingredients are in short supply in a world where many countries are becoming more .

For the immediate future, other countries may or may not follow the U.S. lead, and its influence, toward privatizing space. seems interested, as does , but China and Russia are concerned about their national security, and the European Space Agency is . Without better coordination, it seems likely that eventually peaceful, sustainable development of off-world resources will give way to competing claims, despite readily available examples of how to avoid conflict.

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