Summary The Origins, Spectral Interpretation, Resource Identification, and Security – Regolith Explorer (OSIRIS-REx) was the first U.S. spacecraft to collect a sample from an asteroid and deliver it to Earth on Sept. 24, 2023. After the delivery, OSIRIS-REx was renamed OSIRIS-APEX (OSIRIS-Apophis Explorer) and departed for an extended mission to asteroid Apophis, which it will … Continue reading OSIRIS-REx In Depth