International Asteroid Day
International Asteroid Day on 30 June raises public awareness of the risk of asteroid impacts and how the world would respond.
- UK
- USA
- Ireland (not marked)
- Canada (not marked)
- Australia (not marked)
- New Zealand (not marked)
- International
OrganiserUnited Nations General Assembly
ListingAdded by us from official sources
Last checked19 October 2026
First held2016
About the day
The UN General Assembly declared the day in December 2016. The date marks the Tunguska impact over Siberia on 30 June 1908.
Dates for the next three years
| Year | Date | Where | Status |
|---|---|---|---|
| 2027 | Wednesday 30 June 2027 | UK, USA, International | Same date every year |
| 2028 | Friday 30 June 2028 | UK, USA, International | Same date every year |
| 2029 | Saturday 30 June 2029 | UK, USA, International | Same date every year |
Where this information comes from
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