Results 131 to 140 of about 821,143 (284)

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

open access: yesRapid 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   +4 more
wiley   +1 more source

Radar and Optical Observations and Physical Modeling of Binary Near-Earth Asteroid 2018 EB

open access: yesThe Planetary Science Journal
We report radar, photometric, and visible-wavelength spectrophotometry observations of NEA 2018 EB obtained in 2018. The radar campaign started at Goldstone (8560 MHz, 3.5 cm) on April 7, and it was followed by more extensive observations from October 5 ...
Marina Brozović   +19 more
doaj   +1 more source

Asteroid Observations from the Transiting Exoplanet Survey Satellite: Detection Processing Pipeline and Results from Primary Mission Data

open access: hybrid, 2021
D. Woods   +9 more
openalex   +1 more source

Weywot, an Unusually Low-albedo Satellite in the Trans-Neptunian Region

open access: yesThe Astrophysical Journal Letters
Weywot is the largest satellite of the candidate dwarf planet Quaoar, which also hosts a remarkable ring system located beyond its Roche limit—a configuration that challenges conventional understanding of ring dynamics.
Estela Fernández-Valenzuela   +42 more
doaj   +1 more source

The orbit of asteroid (317) Roxane’s satellite Olympias from Gemini, Keck, VLT and the SOR, and (22) Kalliope’s Linus from the SOR

open access: green, 2020
J. Drummond   +13 more
openalex   +2 more sources

Synchronous Rotation in the (120347) Salacia–Actaea System

open access: yesThe Planetary Science Journal
We report on roughly 16 yr of photometric monitoring of the trans-Neptunian binary system (120347) Salacia–Actaea, which provides significant evidence that Salacia and Actaea are tidally locked to the mutual orbital period in a fully synchronous ...
Cameron Collyer   +10 more
doaj   +1 more source

Discovery and physical properties of Dactyl, a satellite of asteroid 243 Ida

open access: yes, 1995
Observations of stellar occultions by asteroids have suggested that some may have satellites. But given the absence of any confirmatory evidence, the prevailing view has been that although such satellites probably do exist, they are likely to be rare ...
A. Harch   +23 more
core   +1 more source

A Change of the Rotation Period of Asteroid (65803) Didymos Caused by the DART Impact

open access: yesThe Planetary Science Journal
On 2022 September 26, the NASA Double Asteroid Redirection Test (DART) spacecraft impacted Dimorphos, the secondary component of the binary asteroid (65803) Didymos. This experiment tested the kinetic impactor technology for diverting dangerous asteroids.
Josef Ďurech   +5 more
doaj   +1 more source

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