On 30 June 1908, 110 years ago, a 40 m asteroid struck the Earth over Tunguska, Siberia. Destroying an area of forest the size of Greater London, this was the most significant impact event in Earth’s recent history. Now recognised by the United Nations as Asteroid Day, 30 June marks a global opportunity to raise awareness of the threat and opportunity posed by the numerous rocky bodies traversing space.
Since 2009, ESA has played a leading role in the global hunt for risky asteroids and comets – known formally to astronomers as near-Earth objects (NEO) – and is currently developing cutting-edge widefield telescopes that will have the ability to scan the entire sky in just 48 hours. ESA also carries out crucial analysis as part of its Space Situational Awareness (SSA) programme and mobilises observatories and astronomers worldwide through its SSA NEO Coordination Centre at the Agency’s ESRIN facility in Italy.
More Information for Asteroid Day: https://asteroidday.org/