Besides general organic compounds, what two critical ingredients were explicitly confirmed to be present in the dark, carbon-rich material returned from Bennu?

Answer

Water and carbon

The OSIRIS-REx mission team highlighted that the samples from Bennu contained water and carbon, which are recognized as two critical ingredients necessary for organic chemistry.

Besides general organic compounds, what two critical ingredients were explicitly confirmed to be present in the dark, carbon-rich material returned from Bennu?
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