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Asteroid has a very small chance of hitting Earth in 2032, but a collision could devastate a city

By Maggie Lieu, Research Fellow, School of Physics and Astronomy, University of Nottingham

In December 2024, astronomers in Chile spotted a new asteroid streaking through the sky, which they named 2024 YR4. What’s significant about this 100m-wide space rock is that it has a small chance of hitting Earth in 2032.

Since its discovery, the asteroid’s probability of an impact with our planet has gone all over the place. At one point, the risk rose as…

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