What two events occurred in 1963 significant for international space law?

• A. The UN passed Resolution 1884 banning WMD in orbit; US-UK-Soviet signed LTBT
• B. The United States, United Kingdom, and Soviet Union signed the International ASAT Treaty; UN banned nuclear tests in ocean
• C. The Soviet Union soft landed on the Moon; US passed a Congressional resolution condemning FOBS
• D. The United States, United Kingdom, and Soviet Union signed the Anti-ballistic Missile Treaty; UN passed Resolution 1799 condemning ASAT weapons

Answer: (A)

In 1963, space law began to take a clear turn toward arms control and peaceful use of outer space. The UN General Assembly adopted a resolution calling for outer space to be used for peaceful purposes and urging negotiations to prevent the placement of weapons of mass destruction in orbit. This established a strong normative boundary: space should not become a battlefield. In the same year, the United States, the United Kingdom, and the Soviet Union signed the Partial Test Ban Treaty, which bans nuclear explosions in the atmosphere, underwater, and in outer space. This directly limits the militarization of space by removing one of the most destabilizing activities—the test explosions—from the space environment, helping protect space operations and reduce debris. Together, these events mark early shaping of international space law, laying groundwork that would lead to later agreements like the Outer Space Treaty. The other options either mix up events that didn’t occur in 1963 or refer to measures that happened later.