Fragments from the asteroid US space agency Nasa has described as the most dangerous rock in the Solar System have arrived in the UK for study.

The tiny pieces of rock and dust from the object known as Bennu will be subjected to tests at the Natural History Museum, and the Open, Manchester and Oxford universities.

The sample was scooped up from the surface of 500m-wide asteroid Bennu in 2020 by Nasa's Osiris-Rex spacecraft, and then delivered by capsule to the Utah desert two months ago.

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