International Asteroid Day in the United States is observed annually on June 30th. This day is a global awareness campaign to educate people about asteroids and what can be done to protect Earth from potential impacts. Here's a brief overview:

History:

• Establishment: International Asteroid Day was co-founded by Dr. Brian May, astrophysicist and lead guitarist of the rock band Queen, alongside filmmaker Grigorij Richters, Apollo 9 astronaut Rusty Schweickart, and B612 Foundation President Danica Remy.
• Official Recognition: The United Nations officially recognized International Asteroid Day on December 6, 2016.
• Significance of Date: The date of June 30th was chosen to commemorate the Tunguska event in Siberia, the largest asteroid impact on Earth in recent history, which occurred on June 30, 1908.

Traditions and Activities:

• Educational Events: Museums, planetariums, universities, and space agencies often host lectures and educational programs focused on asteroid detection and space science.
• Social Media Campaigns: Organizations and individuals participate in online campaigns to spread awareness about asteroids using hashtags like #AsteroidDay.
• Expert Panels: Scientists and experts join panels to discuss the latest research on asteroids.
• Movie Screenings: Some communities may screen films or documentaries related to space and asteroids.

Participation:

On International Asteroid Day in the U.S., people engage by attending events or participating online. They may also:

• Learn about asteroids through interactive websites or mobile apps.
• Engage with astronomers or researchers through webinars or live-streamed talks.
• Participate in local stargazing events if available.

The day serves as an opportunity for scientists to share their work with the public and for everyone to consider our place in the solar system.