OSIRIS-REx
Origins, Spectral Interpretation, Resource Identification, and Security – Regolith Explorer
OSIRIS-REx is the first U.S. mission to collect a sample from an asteroid. It returned to Earth on Sept. 24, 2023, to drop off a capsule with material from asteroid Bennu. After dropping off the sample capsule through Earth's atmosphere, the spacecraft was renamed OSIRIS-APEX and sent on a new mission to explore asteroid Apophis in 2029.
Mission Type
Destination
sample DELIVERED
Objective
Latest News
Studies of rock and dust from asteroid Bennu delivered to Earth by the OSIRIS-REx spacecraft have revealed molecules that, on our planet, are key to life, as well as a history of saltwater that could have served as the “broth” for these compounds to interact and combine.
Mission Overview
Launched on Sept. 8, 2016, the Origins, Spectral Interpretation, Resource Identification, and Security-Regolith Explorer, or OSIRIS-REx, spacecraft traveled to a near-Earth asteroid named Bennu (formerly 1999 RQ36). It collected a sample of rocks and dust from Bennu's surface on October 20, 2020.
The spacecraft delivered the sample to Earth on Sept. 24, 2023 when it released a capsule with grains of Bennu over Earth’s atmosphere. The capsule parachuted to the Department of Defense's Utah Test and Training Range, where the OSIRIS-REx team was waiting to retrieve it.
Scientists hope the Bennu sample will reveal whether asteroids that collided with Earth billions of years ago thereby delivered water and other ingredients for life to our planet.
OSIRIS-REx Sample Landing
To view more images from the Sept. 24, 2023, asteroid sample arrival in Utah,
visitNASA's OSIRIS-REx Flickr gallery.
OSIRIS-REx News
More on the OSIRIS-REx Blog
NASA’s OSIRIS-REx Team Clears Hurdle to Access Remaining Bennu Sample
Curation team members at NASA’s Johnson Space Center in Houston have successfully removed the two fasteners from the sampler head that had prevented the remainder of OSIRIS-REx’s asteroid Bennu sample material from being accessed.
NASA’s OSIRIS-REx Achieves Sample Mass Milestone
The curation team processing NASA’s asteroid Bennu sample has removed and collected 2.48 ounces (70.3 grams) of rocks and dust from the sampler hardware – surpassing the agency’s goal of bringing at least 60 grams to Earth.
Initial Curation of NASA’s OSIRIS-REx Sample
The initial curation process for NASA’s OSIRIS-REx sample of asteroid Bennu is moving slower than anticipated, but for the best reason: the sample runneth over.
Explore OSIRIS-APEX
OSIRIS-APEX, a follow-on to OSIRIS-REx, will study the physical changes to asteroid Apophis after the asteroid’s rare close encounter with Earth in 2029.
Learn More about Explore OSIRIS-APEX
