A capsule carrying precious samples from asteroid Bennu landed on Earth on Sunday.
Nasa scientists hope the material could give hints to how life here began.
BBC Science editor Rebecca Morelle explains why the samples are so important.
A capsule carrying precious samples from asteroid Bennu landed on Earth on Sunday.
Nasa scientists hope the material could give hints to how life here began.
BBC Science editor Rebecca Morelle explains why the samples are so important.