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The Guardian - UK
The Guardian - UK
Science
Ian Sample Science editor

Asteroid triggers global defence plan amid chance of collision with Earth in 2032

A visual of Nasa's spacecraft mission to crash into asteroids that could potentially threaten Earth
The 100-metre wide asteroid could be deflected with an intercepting spacecraft, a technique tested in Nasa’s Dart mission. Illustration: Nasa/Johns Hopkins/Zuma Press Wire/Rex/Shutterstock

A 100 metre-wide asteroid has triggered global planetary defence procedures for the first time after telescope observations revealed it has a chance of colliding with Earth in 2032.

Asteroid 2024 YR4 was spotted by an automated telescope in Chile on 27 December last year but has since risen to the top of impact risk lists maintained by the US and European space agencies.

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