OSIRIS-REx tagged posts

Highly Porous Rocks Responsible for Bennu’s Surprisingly Craggy Surface

The asteroid Bennu
OSIRIS-REx mission scientists thought sampling a piece of Bennu would be like a walk on the beach, but the surprisingly craggy surface proved to be more of a challenge.NASA/Goddard/University of Arizona

Using data from NASA OSIRIS-REx mission, scientists concluded that asteroids with highly porous rocks, such as Bennu, should lack fine-grained material on their surfaces.

Scientists thought asteroid Bennu’s surface would be like a sandy beach, abundant in fine sand and pebbles, which would have been perfect for collecting samples.Past telescope observations from Earth’s orbit had suggested the presence of large swaths of fine-grain material called fine regolith that’s smaller than a few centimeters.

But when the spacecraft of NASA’s University of Arizona-led OSIRIS-REx asteroid sa...

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Touch-and-go: US Spacecraft Sampling Asteroid for return

Touch-and-go: US spacecraft sampling asteroid for return
This undated image made available by NASA shows the asteroid Bennu from the OSIRIS-REx spacecraft. After almost two years circling the ancient asteroid, OSIRIS-REx will attempt to descend to the treacherous, boulder-packed surface and snatch a handful of rubble on Tuesday, Oct. 20, 2020. (NASA/Goddard/University of Arizona/CSA/York/MDA via AP)

After almost two years circling an ancient asteroid hundreds of millions of miles away, a NASA spacecraft this week will attempt to descend to the treacherous, boulder-packed surface and snatch a handful of rubble.

The drama unfolds Tuesday as the U.S. takes its first crack at collecting asteroid samples for return to Earth, a feat accomplished so far only by Japan.

Brimming with names inspired by Egyptian mythology, the Osiris-Rex mission ...

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Weird, Wild Gravity of Asteroid Bennu

The asteroid Bennu as seen by the OSIRIS-REx spacecraft. The flying saucer-like shape of Bennu is generated, in part, by its spin.
Credit: NASA Goddard Space Flight Center/University of Arizona

Research led by the University of Colorado Boulder is revealing the Alice in Wonderland-like physics that govern gravity near the surface of the asteroid Bennu. The new findings are part of a suite of papers published today by the team behind NASA’s Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer (OSIRIS-REx) mission. And they come just three months after OSIRIS-REx first encountered Bennu on Dec. 3, 2018.

Since then, the spacecraft has completed a few dozen laps around the asteroid, which is about as tall as the Empire State Building, circling Bennu fro...

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Hayabusa2 Probes Asteroid Ryugu for secrets

Ryugu is a C-type asteroid — rich in carbon — about 900m wide.
Credit: © 2019 Seiji Sugita et al., Science

Hayabusa2 helps researchers understand ingredients for life in early solar system. The first data received from the Hayabusa2 spacecraft in orbit of asteroid Ryugu helps space scientists explore conditions in the early solar system. The space probe gathered vast amounts of images and other data which gives researchers clues about Ryugu’s history, such as how it may have formed from a larger parent body. These details in turn allow researchers to better estimate quantities and types of materials essential for life that were present as Earth formed.

“The ground shook. My heart pounded. The clock counted...

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