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Asteroid samples fetched by NASA hold not only the pristine building blocks for life but also the salty remains of an ancient water world, scientists reported Wednesday. The findings provide the ...

Samples of matter returned from the asteroid Bennu support the theory that asteroids could have brought the building blocks of life to Earth, scientists report in a pair of new studies published ...

Three years earlier NASA’s OSIRIS-REx spacecraft had grabbed these samples from the surface of the asteroid Bennu for their fateful delivery to Earth. The hope was that the coal-black material ...