Asteroid sampled by NASA may once have been part of an ocean world

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The sampling mechanism from the OSIRIS-REx spacecraft with material from asteroid Bennu inside

NASA/Erika Blumenfeld & Joseph Aebers

An asteroid sample brought back to Earth may have once been part of a small, ocean-covered world with conditions favourable for life to emerge. That’s according to the team behind NASA’s OSIRIS-REx mission, which brought back a sample of the asteroid Bennu in September 2023.

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