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The OSIRIS-REx spacecraft hovers above the asteroid Bennu during a rehearsal on August 11, 2020, months ahead of a planned mission to collect a sample of the asteroid from its surface.

Successful OSIRIS-REx rehearsal boosts optimism

The rehearsal put the spacecraft within 40 meters of the asteroid Bennu's surface.

Still image from the Aug. 11, second rehearsal of the OSIRIS-REx mission’s sample collection event at the asteroid Bennu.

OSIRIS-REx completes successful rehearsal above asteroid's surface

The mission is scheduled to collect a sample of material from the asteroid Bennu in October.

Image shows the OSIRIS-REx spacecraft approaching the asteroid Bennu in an April 14 rehearsal of the sample collection.

OSIRIS-REx passes milestone by rehearsing approach to asteroid

The first major rehearsal had the added challenge of COVID-19, which meant the mission's team could not be together for the test.

OSIRIS-REx photograph shows material being ejected from the surface of the asteroid Bennu in January 2019.

Discussions continue about mysterious particles around asteroid Bennu

Scientists say the objects, first detected in January, pose no threat to the OSIRIS-REx mission

OSIRIS-REx captured pictures of particles around Bennu earlier this year.

Space Scientists Look For Answers in OSIRIS-REx Photos

Particles and boulders pose new questions for planetary researchers.

OSIRIS-REx Photographs Unique Particles Blasted From Bennu

An unexpected discovery excites UA scientists leading the asteroid sampling mission.

Image illustrating the OSIRIS-REx spacecraft's journey from Earth on its way to the asteroid Bennu.

The Journey of NASA'S OSIRIS-REx Mission

A look back at the UA-led mission's origins and next steps in 2019.

The OSIRIS-REx spacecraft will attempt to sample soil from the surface of the asteroid Bennu.

Rocks On Bennu Create Bump for OSIRIS-REx Sample Search

The scientists have found more rocks than expected on the surface of the asteroid Bennu.

An image of the asteroid Bennu photographed by the OSIRIS-REx spacecraft.

Upcoming Milestones for OSIRIS-REx Mission

A discussion with the mission's image processing lead scientist.

The asteroid Bennu from the final approach of the OSIRIS-REx spacecraft.

Asteroid Receives Holiday Visitor: OSIRIS-REx Arrives at Bennu

About the size of an SUV, the spacecraft will shadow the asteroid for a year, before scooping up some gravel for return to Earth in 2023.

OSIRIS-REx completes a 26-month journey to the asteroid Bennu on Monday.

OSIRIS-REx is Arriving at Asteroid Bennu Monday

The UA-led mission will begin orbital operations after the spacecraft's initial journey of more than two years.

Image from a video illustrating the path the OSIRIS-REx spacecraft is projected to take on its way to the asteroid Bennu.

Earth's Gravity to Slingshot Asteroid-Bound Spacecraft to Target Friday

Maneuver uses Earth's gravity rather than fuel to put OSIRIS-REx on course.

UA Space Programs to Launch 'Asteroid Day' 2017 Stream

OSIRIS-REx, Catalina Sky Survey lead off programming.

Planetary scientist Tom Zega with the UA Lunar and Planetary Laboratory's transmission electronic microscope which will analyze dirt samples returned from the asteroid Bennu in 2023. The instrument has serial number 1.

UA to Get Early Sample of Asteroid for Study

The material should give a glimpse into the history of Bennu, and of the universe.

An image of Jupiter taken by OSIRIS-REx, 75 million miles from Earth and 419 million miles from Jupiter. With an exposure time of two seconds, the image renders Jupiter overexposed, but allows for enhanced detection of stars in the background.

OSIRIS-REx Takes Photo of Jupiter, 3 Moons

UA-led mission testing out its cameras in search of Trojan asteroids.

Artist rendition of OSIRIS-REx's main engine firing.

OSIRIS-REx Spacecraft 'Aces' Its First Deep-Space Maneuver

Engines fired to set up gravity assist for the UA-led mission's spacecraft.

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