The asteroid named YR4 has a 1% chance of hitting Earth in 2032

Bennu contains minerals and thousands of organic molecules, including the chemical components that make up DNA.

The European Space Agency said the asteroid measured 70cm and was spotted about 12 hours in advance.

It was 200 times bigger than the one that wiped out the dinosaurs nearly three billion years later.

The mission aims to re-visit the asteroid Nasa diverted when it crashed a probe into it.

European Space Agency say the asteroid, dubbed 2024 RW1, was "harmless" but created a "spectacular fireball".

Nasa likely has less asteroid Bennu material than first thought, but it still has plenty to analyse.

Tiny pieces of rock and dust from the object known as Bennu come to British labs for study.