Incredible Discovery

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

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The final four candidate sample collection sites shown on a map of asteroid Bennu. They are designated Nightingale, Kingfisher, Osprey and Sandpiper. Credit: NASA/Goddard/University of Arizona

NASA Mission Selects Final Four Site Candidates for Asteroid Sample Return

Aug. 12, 2019

The OSIRIS-REx spacecraft has mapped Bennu to identify the best spots for the spacecraft to collect a sample. The final two sites – a primary and backup – will be selected in December.

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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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Incredible Discovery

Official Site

Bennu in the News

#BennuChat

NASA Mission Selects Final Four Site Candidates for Asteroid Sample Return

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