Incredible Discovery

Arizona-led OSIRIS-REx mission finds evidence of water on asteroid Bennu.

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Bennu's surface is rockier than expected, creating challenges for the team whose mission is to scoop up a sample of pristine material and return it to Earth in 2023. (Image: NASA/Goddard/UA)

An Odd Ball in Space: OSIRIS-REx Spacecraft Studies Asteroid Bennu Up Close

March 18, 2019

The OSIRIS-REx spacecraft's first close-up observations of asteroid Bennu reveal new details that pose a challenge to the mission's objective of returning a sample to Earth.

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(Image: Heather Roper/University of Arizona)

NASA’s OSIRIS-REx Spacecraft Enters Close Orbit Around Bennu, Breaking Record

Dec. 30, 2018

On December 31, NASA's OSIRIS-REx spacecraft entered into orbit around the asteroid Bennu, and made Bennu the smallest object ever to be orbited by a spacecraft.

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This mosaic image of asteroid Bennu is composed of 12 PolyCam images collected on Dec. 2 by the OSIRIS-REx spacecraft from a range of 15 miles (24 km). (Image: NASA/Goddard/University of Arizona)

UA-Led OSIRIS-REx Discovers Water on Asteroid Bennu

Dec. 9, 2018

Observations made by the spacecraft during its approach of Bennu reveal that the asteroid interacted with water in its early history and is an excellent specimen for the mission, which is slated to return a sample of surface material to Earth in 2023.

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Incredible Discovery

Official Site

Bennu in the News

#BennuChat

An Odd Ball in Space: OSIRIS-REx Spacecraft Studies Asteroid Bennu Up Close

NASA’s OSIRIS-REx Spacecraft Enters Close Orbit Around Bennu, Breaking Record

UA-Led OSIRIS-REx Discovers Water on Asteroid Bennu