Asteroids passing Earth. Photo: ESA/Pierre Carril
In December 2016 the United Nations General Assembly adopted resolution A/RES/71/90, declaring 30 June 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."
International Asteroid Day is to raise public awareness about the asteroid impact hazard and 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).