Results 81 to 90 of about 218,932 (203)

The role of composition in the spectral evolution of carbonaceous asteroids as informed by Bennu sample return

open access: yesMeteoritics &Planetary Science, Volume 61, Issue 8, Page 1875-1904, August 2026.
Abstract Near‐Earth rubble‐pile asteroids Bennu and Ryugu are part of the carbonaceous taxonomic complex (C‐complex), and samples returned from both bodies resemble the most aqueously altered carbonaceous chondrites. However, telescopic and spacecraft visible–near infrared (VIS–NIR) reflectance spectra of Ryugu exhibit a red (positive) spectral slope ...
Ralph E. Milliken   +10 more
wiley   +1 more source

Testing the Bus–DeMeo Asteroid Taxonomy Using Meteorite Spectra

open access: yesThe Planetary Science Journal
The most widely used method to spectrally classify asteroids is the Bus–DeMeo taxonomy. To test how well the Bus–DeMeo taxonomy groups asteroids on the basis of their mineralogy, we have classified ∼1500 meteorite spectra using this Bus–DeMeo system ...
Thomas H. Burbine   +5 more
doaj   +1 more source

Evaluating maturity of organic matter in hydrated C1 and CM‐like clasts and a dehydrated clast within a polymict eucrite and a howardite

open access: yesMeteoritics &Planetary Science, Volume 61, Issue 8, Page 1965-1993, August 2026.
Abstract Volatile‐rich xenolithic clasts in different types of brecciated meteorites represent unique pristine solar system material. This study investigates the maturity and thermal history of organic matter using Raman spectroscopy and aqueous alteration effects using infrared spectroscopy in the matrix of 15 volatile‐rich clasts (C1 and CM‐like ...
Swarna Prava Das   +7 more
wiley   +1 more source

Modelling of asteroid formation in planetary vortex and calculation its orbital parameters

open access: yesVìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Modelûvannâ, 2015
The theory of planetary vortex as the initial state of creation of the star systems is used to the study of conditions of formation of asteroids and calculation its orbital parameters.
L. V. Klychinska, V. I. Perekhrest
doaj   +1 more source

Emirates Exploration Imager (EXI) Reveals Crater and Boulder Distribution on Deimos: Insights Into Its Dynamical and Geological Evolution

open access: yesGeophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Deimos, the smaller and outer Martian moon, is a dark, irregularly shaped body whose origin and evolution are still poorly constrained. Its surface is smoother and less cratered than the other moon, Phobos, a difference still unexplained due to limited data coverage and resolution.
Y. Shimizu   +10 more
wiley   +1 more source

Surface Geology and Evolution of Asteroid Ryugu: Insights From Hayabusa2 Global Mapping

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 7, July 2026.
Abstract Rubble‐pile asteroids, characterized by loose aggregates of debris held together by gravity, represent both a significant planetary hazard and a key to understanding planetesimal formation. Geologic mapping of these bodies provides essential insights into their origins, evolution, and surface processes.
Lisa M. Vincent   +8 more
wiley   +1 more source

Asteroid Belt and Jupiter fly by study First bimonthly progress report [PDF]

open access: yes, 1964
Scientific experiments for asteroid belt study and Jupiter flyby ...

core  

Magnetic field measurements during the ROSETTA flyby at asteroid (21) Lutetia [PDF]

open access: yes, 2011
On July 10, 2010, the ROSETTA spacecraft performed a flyby at asteroid (21) Lutetia at a solar distance of 2.72 AU. The spacecraftâ  asteroid distance at closest approach was 3120 km.
Glassmeier, K.H.   +19 more
core   +1 more source

Asteroid Belt and Jupiter flyby study Second bimonthly progress report, 15 Sep. - 30 Oct. 1964 [PDF]

open access: yes, 1964
Trajectory and mission analyses for asteroid belt and Jupiter flyby ...

core  

The Link between Athor and EL Meteorites Does Not Constrain the Timing of the Giant Planet Instability

open access: yesThe Astrophysical Journal Letters
The asteroid Athor, residing today in the inner main asteroid belt, has been recently identified as the source of EL enstatite meteorites to Earth. It has been argued that Athor formed in the terrestrial region—as indicated by a similarity in isotopic ...
André Izidoro   +3 more
doaj   +1 more source

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