Geologic Context of the OSIRIS-REx Sample Site from High-resolution Topography and Imaging

  title={Geologic Context of the OSIRIS-REx Sample Site from High-resolution Topography and Imaging},
  author={O. S. Barnouin and Erica R. Jawin and R. T. Daly and R.‐L. Ballouz and Michael G. Daly and Jeffrey A. Seabrook and P. Michel and Y. Zhang and Catherine L. Johnson and Kevin J. Walsh and Manar M. Al Asad and Robert Gaskell and John R. Weirich and Eric Edward Palmer and Edward B. Bierhaus and M. C. Nolan and Catherine W. V. Wolner and Dante S. Lauretta},
  journal={The Planetary Science Journal},
The OSIRIS-REx spacecraft collected a surface sample from Hokioi crater (55.8° N, 42.3° E; diameter ∼20 m) on the asteroid Bennu in 2020 October. We explore the geology of the sample collection site, known as Nightingale, by using digital terrain models, relative albedo maps, and images collected by the OSIRIS-REx spacecraft. Hokioi crater sits at the northwest edge of an older, larger (120 m diameter) crater between two north–south ridges respectively located at roughly 0° and 90° longitude… 

After DART: Using the first full-scale test of a kinetic impactor to inform a future planetary defense mission

NASA’s Double Asteroid Redirection Test (DART) is the first full-scale test of an asteroid deflection technology. Results from the hypervelocity kinetic impact and Earth-based observations, coupled

High‐Resolution Thermophysical Analysis of the OSIRIS‐REx Sample Site and Three Other Regions of Interest on Bennu

The OSIRIS‐REx (Origins, Spectral Interpretation, Resource Identification, and Security–Regolith Explorer) spacecraft sampled asteroid (101955) Bennu on 20 October 2020 and will return the collected



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

Global spectral observations by the OSIRIS-REx spacecraft have shown that carbon-bearing materials, including organics and/or carbonates, are widespread on the surface of near-Earth asteroid (101955) Bennu.

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

Maps of color and albedo on asteroid Bennu indicate complex evolution of its surface due to space weathering, and constrain Bennu's evolution and provide context for the sample collected in October 2020.

Small-Scale Topography of 433 Eros from Laser Altimetry and Imaging

Abstract The NEAR laser rangefinder (NLR) obtained more than 16 million range returns from asteroid 433 Eros. We present the first results from analyses of topographic profiles interpreted with the

The Unexpected Surface of Asteroid (101955) Bennu

Early OSIRIS-REx observations of Bennu are considered to understand how the asteroid’s properties compare to pre-encounter expectations and to assess the prospects for sample return.

The dynamic geophysical environment of (101955) Bennu based on OSIRIS-REx measurements

Combining the measured Bennu mass and shape obtained during the Preliminary Survey phase of the OSIRIS-REx mission, a notable transition is found in Bennu’s surface slopes within its rotational Roche lobe, defined as the region where material is energetically trapped to the surface.

The geomorphology, color, and thermal properties of Ryugu: Implications for parent-body processes

Spectral observations and a principal components analysis suggest that Ryugu originates from the Eulalia or Polana asteroid family in the inner main belt, possibly via more than one generation of parent bodies.

Widespread carbon-bearing materials on near-Earth asteroid (101955) Bennu

The OSIRIS-REx results constrain Bennu's evolution and provide context for the sample collected in October 2020, as well as finding evidence for organic and carbonate materials that are widely distributed across the surface but are most concentrated on individual boulders.

Spectral analysis of craters on (101955) Bennu

Exogenic basalt on asteroid (101955) Bennu

When rubble-pile asteroid 2008 TC 3 impacted Earth on 7 October 2008, the recovered rock fragments indicated that such asteroids can contain exogenic material 1 , 2 . However, spacecraft missions to