Asteroid Day 1920

Wednesday, 30 June 1920

Asteroid Day is an international awareness event held each year on 30 June to promote public understanding of asteroids, planetary defence, and the 1908 Tunguska event in Siberia.

Frequently asked questions

When is Asteroid Day 1920?
Asteroid Day 1920 is on Wednesday, 30 June 1920.
What day of the week is Asteroid Day 1920?
It falls on Wednesday.
How is Asteroid Day calculated?
This event is observed every year on 30 June.