Proclamation of June 30th as International Asteroid Day.
The United Nations General Assembly adopted the Resolution A/RES/71/90 in December 2016, declaring June 30th as International Asteroid Day in order to "observe each year at the international level the anniversary of the Tunguska impact over Siberia, Russian Federation, on 30 June 1908, and to raise public awareness about the asteroid impact hazard." The Day aims to raise public awareness about the asteroid impact hazard and to inform the public about the crisis communication actions to be taken at the global level in case of a credible near-Earth object threat. The General Assembly’s decision was made based on a proposal by the Association of Space Explorers , which was endorsed by Committee on the Peaceful Uses of Outer Space (COPUOS) .