World Asteroid Day

About World Asteroid Day:

• It is observed on June 30 every year.
• The day aims to raise awareness about asteroid impact hazards and crisis communication actions in case of a credible asteroid threat to planet Earth.
• The day also aims to educate people about the latest and upcoming asteroid research and technology through numerous events and activities held by organisations across the globe.
• History:
  • The United Nations General Assembly (UNGA) passed a resolution in December 2016, designating June 30 as International Asteroid Day. 
  • The UNGA adopted the resolution based on the proposal made by the Association of Space Explorers, endorsed by the Committee on the Peaceful Uses of Outer Space (COPUOS).
  • The date was chosen to commemorate the anniversary of the Tunguska asteroid’s impact over Siberia on June 30, 1908.

Tunguska Event:

• It is considered the biggest asteroid impact in recorded history when an asteroid exploded a few kilometers above the Tunguska region of central Siberia.
• It flattened more than 80 million trees in seconds, over an area spanning nearly 800 square miles (2,000 square kilometers) — but left no crater. 

What is an Asteroid?

• Asteroids are small, rocky objects that orbit the sun.
• Although asteroids orbit the sun like planets, they are much smaller than planets.
• They are leftovers from the formation of our solar system.
• From being as small as 10 meters across to as huge as 530 km in diameter, asteroids have varied sizes.

Q1) What is an Asteroid?

Asteroids are small, rocky objects that orbit the sun. Although asteroids orbit the sun like planets, they are much smaller than planets. They are leftovers from the formation of our solar system.  From being as small as 10 meters across to as huge as 530 km in diameter, asteroids have varied sizes.

Source: World Asteroid Day — all about the day co-founded by a rockstar

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