2015-06-30 (Asteroid Day official date)

June 30, 2015, was designated as Asteroid Day, an international observance aimed at raising awareness about asteroids and their potential impact on Earth. Held annually, this day promotes scientific research, planetary defense strategies, and public understanding of near-Earth objects. It commemorates the anniversary of the Tunguska event in 1908, when a large asteroid or comet exploded over Siberia, causing widespread destruction. Asteroid Day encourages global efforts to detect, track, and develop methods to mitigate asteroid threats, emphasizing the importance of preparedness and scientific collaboration to protect our planet.