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