Spacecraft sample collection and subsurface excavation of asteroid (101955) Bennu

DS Lauretta, CD Adam, AJ Allen, RL Ballouz… - Science, 2022 - science.org
Carbonaceous asteroids, such as (101955) Bennu, preserve material from the early Solar
System, including volatile compounds and organic molecules. We report spacecraft imaging …

Near-zero cohesion and loose packing of Bennu's near subsurface revealed by spacecraft contact

KJ Walsh, RL Ballouz, ER Jawin, C Avdellidou… - Science …, 2022 - science.org
When the OSIRIS-REx spacecraft pressed its sample collection mechanism into the surface
of Bennu, it provided a direct test of the poorly understood near-subsurface physical …

Asteroid (101955) Bennu's weak boulders and thermally anomalous equator

B Rozitis, AJ Ryan, JP Emery, PR Christensen… - Science …, 2020 - science.org
Thermal inertia and surface roughness are proxies for the physical characteristics of
planetary surfaces. Global maps of these two properties distinguish the boulder population …

Variations in color and reflectance on the surface of asteroid (101955) Bennu

DN DellaGiustina, KN Burke, KJ Walsh, PH Smith… - Science, 2020 - science.org
INTRODUCTION The color and reflectance of asteroids can be used to infer their
compositions and histories. Variations in these spectrophotometric properties are driven by …

Bright carbonate veins on asteroid (101955) Bennu: Implications for aqueous alteration history

HH Kaplan, DS Lauretta, AA Simon, VE Hamilton… - Science, 2020 - science.org
INTRODUCTION Carbonaceous asteroids formed early in Solar System history and
experienced varying degrees of aqueous (water-rock) and thermal alteration. Most models …

The geology and evolution of the Near-Earth binary asteroid system (65803) Didymos

O Barnouin, RL Ballouz, S Marchi, JB Vincent… - Nature …, 2024 - nature.com
Images collected during NASA's Double Asteroid Redirection Test (DART) mission provide
the first resolved views of the Didymos binary asteroid system. These images reveal that the …

[HTML][HTML] Overview of the search for signs of space weathering on the low-albedo asteroid (101955) Bennu

BE Clark, A Sen, XD Zou, DN Dellagiustina, S Sugita… - Icarus, 2023 - Elsevier
This paper summarizes the evidence for the optical effects of space weathering, as well as
the properties of the surface that control optical changes, on asteroid (101955) Bennu. First …

Heterogeneous mass distribution of the rubble-pile asteroid (101955) Bennu

DJ Scheeres, AS French, P Tricarico, SR Chesley… - Science …, 2020 - science.org
The gravity field of a small body provides insight into its internal mass distribution. We used
two approaches to measure the gravity field of the rubble-pile asteroid (101955) Bennu:(i) …

Assessing the sampleability of Bennu's surface for the OSIRIS-REx asteroid sample return mission

KJ Walsh, EB Bierhaus, DS Lauretta, MC Nolan… - Space Science …, 2022 - Springer
NASA's first asteroid sample return mission, OSIRIS-REx, collected a sample from the
surface of near-Earth asteroid Bennu in October 2020 and will deliver it to Earth in …

OSIRIS-APEX: an OSIRIS-REx extended mission to asteroid apophis

DN DellaGiustina, MC Nolan, AT Polit… - The Planetary …, 2023 - iopscience.iop.org
Abstract The Origins, Spectral Interpretation, Resource Identification, and Security–Regolith
Explorer (OSIRIS-REx) spacecraft mission characterized and collected a sample from …