NASA says OSIRIS-REx Bennu sample collection effort is finally over

After a few days of effort, NASA has confirmed that its OSIRIS-REx spacecraft has secured its Bennu asteroid sample payload, meaning that scientists will eventually get their hands on a pure few ounces of asteroid regolith. The news follows NASA’s statement that though the Bennu touchdown and sampling event had been a success, some of the sampled material was leaking …