Earlier this week, Elon Musk revealed his plan to make humanity a multi-planetary species by building an express train to Mars. There are a lot of open questions about how this will work, technically speaking, and who will pay for it. But there’s another fundamental issue that must be addressed before anybody can reserve a seat on the first spaceship out: Is going to Mars even legal?
I posed that question to Joanne Gabrynowicz, director of the International Institute of Space Law. The short answer is there’s no legal framework governing most of what Musk outlined in his vision. Right now, the billionaire does not have permission to send a single robotic probe to Mars, much less thousands of Earth citizens.
In the United States, the Federal Aviation Administration (FAA) has jurisdiction to license what goes up into orbit, and what comes back down to Earth. But as soon as you’re in orbit, or heading to another celestial body, the rules start to get fuzzy. “At the moment, there is no legal regime for on-orbit activities,” Gabrynowicz said.
Right now, any US company wishing to do something in space has to be authorized by the appropriate federal agency, usually the FAA or the Department of State. For instance last month, Google LunarX-Prize contender Moon Express received a “favorable payload determination” from the FAA for its request to stick a robotic lander on the Moon. Basically, the feds decided the payload is not going to harm people or jeopardize US national security, and so Moon Express can go right ahead. It was the first time a private US corporation received explicit permission to land on a celestial body.
The approval was met with hearty victory whoops from the commercial space community, which took it as a sign the feds may look favorably upon other deep space endeavors. But the FAA has made it clear that it wasn’t setting any precedents. “Other companies, or even Moon Express, would have to undergo a similar payload review if they wanted to do something similar,” Gabrynowicz said. “Everything is on a case-by-case basis.”
What’s more, getting a payload authorization is not the same as being licensed to conduct activity once you’ve landed. If you want to rove around on the surface, drill for precious metals, send a message back to Earth, or build a self-sustaining city, you’re going to need other licenses.
All we really know at this point is that under the Outer Space Treaty of 1967, the United States is responsible for any and all activity a US company engages in on another celestial body. And in the case of SpaceX building a settlement on Mars, the US is going to want to supervise and regulate carefully. Particularly given that several other tenants of the Outer Space Treaty—the prohibition of nuclear weapons in space, and the mandate that states should avoid “harmful contamination of celestial bodies”—seem directly at odds with Musk’s plan.