Sulfide minerals bear witness to impacts across the solar system [PDF]
Nature CommunicationsSulfide minerals are ubiquitous in extraterrestrial sample collections and serve as a unique record of the microstructural and chemical characteristics resulting from exposure to interplanetary space on airless planetary surfaces.
Michelle S. Thompson +3 more
doaj +2 more sources
Low thermal inertia of carbonaceous asteroid Bennu driven by cracks observed in returned samples [PDF]
Nature CommunicationsThermal inertia is used to infer physical properties of asteroid surfaces. The carbonaceous asteroid Bennu has low thermal inertia suggestive of a surface covered in sub-centimeter rock fragments.
A. J. Ryan +55 more
doaj +2 more sources
The geology and evolution of the Near-Earth binary asteroid system (65803) Didymos [PDF]
Nature CommunicationsImages collected during NASA’s Double Asteroid Redirection Test (DART) mission provide the first resolved views of the Didymos binary asteroid system.
Olivier Barnouin +62 more
doaj +2 more sources
Fast boulder fracturing by thermal fatigue detected on stony asteroids [PDF]
Nature CommunicationsSpacecraft observations revealed that rocks on carbonaceous asteroids, which constitute the most numerous class by composition, can develop millimeter-to-meter-scale fractures due to thermal stresses.
A. Lucchetti +60 more
doaj +2 more sources
The Increasingly Strange Polarimetric Behavior of the Barbarian Asteroids
The Planetary Science Journal, 2023 Polarization phase-curve measurements provide a unique constraint on the surface properties of asteroids that are complementary to those from photometry and spectroscopy and have led to the identification of the “Barbarian” asteroids as a class of ...
Joseph R. Masiero +4 more
doaj +1 more source
Thermophysical Investigation of Asteroid Surfaces. II. Factors Influencing Grain Size
The Planetary Science Journal, 2022 Asteroid surfaces are subjected to mechanical weathering processes that result in the development and evolution of regolith. Two proposed mechanisms—impact bombardment and thermal fatigue—have been proposed as viable and dominant weathering processes ...
Eric M. MacLennan, Joshua P. Emery
doaj +1 more source
Albedo heterogeneity on the surface of (1943) Anteros [PDF]
, 2009 We have investigated the effect of rotation on the polarization of scattered light for the near-Earth asteroid (1943) Anteros using the Dual Beam Imaging Polarimeter on the University of Hawaii's 2.2 m telescope.
Akimov +23 more
core +1 more source
Stereophotoclinometry for OSIRIS-REx Spacecraft Navigation
The Planetary Science Journal, 2023 We summarize a decade of effort by the Origins, Spectral Interpretation, Resource Identification, and Security–Regolith Explorer (OSIRIS-REx) mission team to build up the unique capabilities, processes, and procedures required to accomplish the ...
Coralie D. Adam +20 more
doaj +1 more source
ADAM: a general method for using various data types in asteroid reconstruction [PDF]
, 2015 We introduce ADAM, the All-Data Asteroid Modelling algorithm. ADAM is simple and universal since it handles all disk-resolved data types (adaptive optics or other images, interferometry, and range-Doppler radar data) in a uniform manner via the 2D ...
Durech, Josef +2 more
core +2 more sources
An Efficient Numerical Approach to Modeling the Effects of Particle Shape on Rubble-pile Dynamics
The Planetary Science Journal, 2023 We present an approach for the inclusion of nonspherical constituents in high-resolution N -body discrete element method (DEM) simulations. We use aggregates composed of bonded spheres to model nonspherical components.
Julian C. Marohnic +4 more
doaj +1 more source