On this day in 1967, the Outer Space Treaty entered into force, becoming the first effort to establish universal principles and guidelines for activities in outer space. It was created under the auspices of the United Nations based on proposals by the world’s two principal space powers, the United States and Soviet Union.
Naturally, I took the opportunity to improve the Wikipedia article about it, which deserves greater justice (See the before and after photos below.)
It may not be a household name — then again, few treaties are —but the Outer Space Treaty remains one of the most relevant texts in international law today. It is the foundational framework for what we now know as space law, a legal field that is more relevant than ever now that dozens of countries and companies are actively involved in space activities.
The Outer Space Treaty forms the basis of ambitious projects such as the International Space Station (the biggest scientific endeavor in history) and the Artemis Program, a U.S.-led international coalition to return humans to the Moon and to ultimately launch crewed missions to Mars and beyond.
The main crux of the Outer Space Treaty is preventing the placement of weapons of mass destruction in space; broader principles include allowing all nations to freely explore space; limiting space activities to peaceful purposes; preventing any one nation from claiming territory in space; and fostering goodwill and cooperation in space exploration (such as rescuing one another’s astronauts or preventing our space probes from damaging others).
I know, I know, it is all quite idealistic. But all things considered, the treaty has held up fairly well: Most of the world’s countries, including all the major space powers, have ratified it and abided by its terms (after all, it is in everyone’s self-interest to keep everyone else from putting nukes in space). Naturally, some provisions were written vaguely enough to allow some workarounds — for example, space forces are still allowed so long as they are not armed with WMDs and belligerent.
The Outer Space Treaty is influential enough to still be referenced by the major space programs, and has enough legitimacy that every government feels the need to at least pay lip service to its terms. Whether this holds up in an ever-intensifying rivalry among both countries and companies is a different story — but it is certainly better than nothing.