Early analysis of the Bennu sample from OSIRIS-REx shows it contains carbon, nitrogen, organic compounds, and magnesium-sodium phosphate, hinting that it might have spintered off from an early oceanic world.
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This story was covered by the following sources:
Asteroid Samples Were Once Part of a Wetter World • Universe Today
Surprising discovery of phosphate in the NASA’s ‘OSIRIS-REx Asteroid’ Sample • Moneycontrol.com
An OSIRIS-REx Asteroid Sample Has Surprising Phosphate Content • astrobiology.com
Phosphate in NASA’s OSIRIS-REx asteroid sample suggests space rock Bennu hails from an ocean world • Satellite News Network
Surprising Phosphate Finding in NASA’s OSIRIS-REx Asteroid Sample • SpaceWatch Africa
Surprising phosphate discovery in Bennu asteroid sample • Space Daily
Space.com
• Victoria Corless