A terrifying interactive map reveals just how much of major UK cities would be flattened by the impact of the 'city killer' ...

NASA and European scientists explain how they calculate the probability of the space rock 2024 YR4 impacting our planet, and why it’s not yet time to worry.

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James Dorland, a second-generation land surveyor from Greater Sudbury, is reflecting on his involvement in a project to help map out asteroid Bennu.