Results 121 to 130 of about 3,356 (219)

Low temperatures and high water/rock ratios in asteroid (101955) Bennu's history based on X‐ray powder diffraction of returned samples

Meteoritics &Planetary Science, Volume 61, Issue 6, Page 1077-1094, June 2026.
Abstract Samples returned by NASA's OSIRIS‐REx mission from the carbonaceous asteroid (101955) Bennu hold clues about conditions in the early solar system and the formation of planetary bodies. Initial investigation of Bennu samples found that they are rich in phyllosilicates and other secondary minerals formed during aqueous alteration of a larger ...
A. J. King, P. F. Schofield, J. Najorka, H. C. Bates, S. S. Russell, T. J. McCoy, T. J. Zega, H. C. Connolly Jr, D. S. Lauretta   +8 more
wiley   +1 more source

Potential of VIS‐IR imaging spectroscopy and SEM‐EDS and EMPA to map the mineralogical composition of NWA 7317 (CR6)

Meteoritics &Planetary Science, Volume 61, Issue 6, Page 1026-1044, June 2026.
Abstract Asteroid compositional analysis relies on comparing reflectance spectra with laboratory data from well‐characterized meteorites. To advance this comparison, we performed a comprehensive laboratory analysis on a slab of the Northwest Africa (NWA) 7317—CR6 carbonaceous chondrite.
Simone Pascucci, Tiberio Cuppone, Martina Casalini, Simone De Angelis, Antonio Lettino, Angelo Palombo, Eliana La Francesca, Gianrico Filacchione, Maria Cristina De Sanctis, Anna Galiano, Giovanni Pratesi   +10 more
wiley   +1 more source

No exotic matter in asteroids. [PDF]

Eur Phys J Plus
Rubin AE, Burbine TH.
europepmc   +1 more source

Asteroid sample return missions are critical for understanding our Solar System. [PDF]

Nat Commun
Bates H.
europepmc   +1 more source

Phosphorus-nitrogen systematics of first-generation planetesimals constrain life-essential element delivery to Earth. [PDF]

Sci Adv
Pathak D, Dasgupta R, Iyer N.
europepmc   +1 more source

Combustion and Pyrolysis EA‐IRMS Techniques to Determine the δ2H of Diamonds

Rapid Communications in Mass Spectrometry, Volume 40, Issue 10, 30 May 2026.
ABSTRACT Rationale Diamonds are generally considered to be metasomatic minerals originating from the Earth's mantle. They formed through the interaction of carbon‐bearing fluids or melts with the surrounding deep lithology. Most knowledge about the formation of diamonds comes from studying their mineral inclusions or stable isotopes.
François Fourel, Christophe Lécuyer, Emilie Thomassot, Etienne Deloule, Charles Ojeimi   +4 more
wiley   +1 more source

Method Development for the Analysis of Carbonaceous Chondrites by Laser Desorption/Ionization and Secondary Ion Time-of-Flight Mass Spectrometry. [PDF]

J Mass Spectrom
Rados E, Frank J, Pittenauer E.
europepmc   +1 more source

Mineralogical Evidence for Highly Evolved Th‐Saturated Magma on Mars

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract Thorium‐rich (Th‐rich) geological units have been detected by remote sensing in the Martian crust. However, there is still a lack of mineralogical evidence to constrain the magmatic processes responsible for these anomalies. In this study, we report the first discovery of thorite (ThSiO4) grains within a zircon fragment from Martian regolith ...
Xiaojia Zeng, Xiongyao Li
wiley   +1 more source

An organics-forward approach to searching for life on Mars. [PDF]

Nat Commun
Buckner DK, Mojarro A.
europepmc   +1 more source

High‐Pressure Elasticity of CAS Phase and Its Implications for the Fate of Subducted Anorthosite Crust

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract The CAS phase (CaAl4Si2O11) is a key phase formed in subducted silica‐alumina rich crustal and sedimentary materials under the mantle transition zone conditions. In this study, its elastic properties were investigated using first‐principles calculations up to 30 GPa.
Baoyun Wang, Meisu Xiang
wiley   +1 more source