Content overview: “Outer Space Treaty Ratified on Oct. 10, 1967: How It Still Governs Space Exploration”. On October 10, 1967, the Outer Space Treaty officially entered into force, establishing a foundational legal framework for how nations can use outer space. Ratified by the United States, the Soviet Union, and the United Kingdom, among others, the treaty declared that space and celestial bodies are free for exploration and use by all countries, but cannot be claimed by any one nation.
It also prohibited the placement of nuclear weapons or other weapons of mass destruction in orbit or on celestial bodies, ensuring space remained a domain for peaceful purposes. The treaty’s ratification came at the height of the Cold War space race, just a decade after Sputnik and two years before Apollo 11, making it a crucial diplomatic achievement that prevented an arms race beyond Earth. For the complete material, the listing points back to the source inside the network.