The crater could be relatively young with freshly exposed regolith, meaning a pristine sample of the asteroid may be collected from this region, offering deep insights into Bennu's history. Nasa confirms sample collection site on asteroid Bennu. Press Trust of India Houston December 13, 2019 UPDATED: December 13, 2019 22:38 IST. During the sample collection event, which is scheduled for August, the SamCam imager will continuously document the entire event and touchdown maneuver. Collection of Bennu samples delayed. For more than a year we have been following the trajectory of the OSIRIS-REx mission, the ship that NASA sent to the asteroid Bennu to collect ours and bring them back to Earth, a fact unprecedented in the history of humanity. advertisement.