We now know exactly how much material OSIRIS-REx captured from its target asteroid Bennu — and, it’s a lot.
In addition to the 2.48 ounces (70.3 grams) of sample already collected from the outside of the canister, NASA has finally managed to fully open OSIRIS-REx’s sample container to find another 1.81 ounces (51.2 grams) of asteroid Bennu within.
OSIRIS-REx completed its asteroid sample return mission when the probe parachuted a tightly-sealed container back to Earth on Sep. 24, 2023 before embarking on its secondary mission dubbed OSIRIS-APEX, named for its next space rock target, Apophis.
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