A Nasa mission that collided with an asteroid didn’t just leave a dent – it reshaped the space rock

By Ian Whittaker, Senior Lecturer in Physics, Nottingham Trent University

A frequent idea in sci-fi and apocalyptic films is that of an asteroid striking Earth and causing global devastation. While the probabilities of this kind of mass extinction occurring on our planet are incredibly small, they are not zero.

The results of Nasa’s Dart mission to the asteroid Dimorphos have now been published. They contain fascinating details about the composition of this asteroid and whether we can defend Earth against incoming space rocks.

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