“Asteroid Day is a global awareness campaign where people from around the world come together to learn about asteroids and what we can do to protect our planet, families, communities, and future generations from future asteroid impacts. Asteroid Day will be held on the anniversary of the Tunguska event in Siberia, the largest asteroid to impact Earth in recent history – an asteroid that devastated an area about the size of any major metropolitan area. Regionally organised large and small events will be held on Asteroid Day – from live concerts and community events, to lectures and other educational programmes, to support a movement calling for increased detection and mapping of asteroids. The 100x Asteroid Declaration, calling for this action, has been signed by astronauts, scientists, artists and leaders in business and technology.”