International Asteroid Day is observed on June 30th each year. It aims to increase public awareness about the potential dangers of asteroids and other near-Earth objects (NEOs). The United Nations officially recognized this day in December 2016.
This date was chosen to commemorate the Tunguska event, which occurred on June 30, 1908, in Siberia, Russia. It was the largest recorded asteroid impact in Earth’s recent history.
The main objectives of International Asteroid Day are:
Near-Earth objects (NEOs) are asteroids or comets that orbit close to Earth’s path around the sun. Scientists have discovered over 16,000 NEOs so far. While most pose no immediate danger, some could potentially collide with Earth in the future.
On June 30, 1908, a large explosion occurred over Tunguska, Siberia. It flattened about 2,000 square kilometers of forest. Scientists believe this was caused by an asteroid or comet exploding in the atmosphere.
On February 15, 2013, a smaller but still significant event occurred over Chelyabinsk, Russia. A meteor about 18 meters wide entered Earth’s atmosphere at high speed. It exploded in the air, creating a bright flash and powerful shock wave. This event injured over 1,600 people and damaged thousands of buildings.
Asteroid impacts are rare but can be extremely dangerous. Even a relatively small asteroid could cause significant damage to a city or region. Larger impacts could have global consequences. By studying and tracking asteroids, we can:
Several organizations work together to monitor and plan for potential asteroid dangers:
UNOOSA recognizes that asteroid threats are a global issue requiring international cooperation. They help coordinate efforts between different countries and organizations.
IAWN was established in 2014. Its main tasks are:
SMPAG is a group of space agencies that work on:
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