World Space Week Date in the current year: October 4, 2019

World Space Week October 4 is the first day of World Space Week. World Space Week is an annual celebration instituted by the United Nations General Assembly. It recognizes the contributions of space science and technology to the betterment of the human condition.

The week between October 4-10 was officially designated as World Space Week (WSW) in December 1999. These dates were chosen to commemorate two important events in space exploration history. On October 4, 1957, the Soviet Union launched the first artificial Earth satellite, Sputnik 1. On October 10, 1967, the Outer Space Treaty signed by the USA, the UK, and the USSR entered into force.

WSW is coordinated by the UN and the World Space Week Association, a non-profit NGO led by volunteers. WSW events and activities are held in 80 countries by aerospace companies, space agencies, museums, planetaria, schools, and astronomy clubs. These events aim at educating people about the benefits they receive from space, encouraging space education, and raising public awareness of the importance of space programs.

Every year, the new theme for the week is chosen. All participants are encouraged to organize events that promote the current year's theme, as well as universal goals of World Space Week.

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