International Asteroid Day observed to boost planetary defence
International Asteroid Day is observed annually on 30 June. The United Nations recognises the day to raise awareness of asteroid impact hazards and planetary defence. The date also marks the 1908 Tunguska airburst in Siberia, one of the largest asteroid-related events in history. Space agencies and educational institutions organise lectures, simulations, and outreach activities in many countries, including India, to highlight monitoring systems for near-Earth objects and emergency response planning. The observance emphasizes international cooperation in tracking asteroids, sharing data, and developing mitigation strategies for potential threats.
Observed on 30 June every year
UN-recognised for planetary defence awareness
Commemorates 1908 Tunguska event
Involves space agencies and educational outreach
Encourages international data sharing and monitoring