Results 111 to 120 of about 12,511 (212)
New Li Lidar Observations and Model Simulations: A Window to Anthropogenic Signatures
Geophysical Research Letters, Volume 52, Issue 22, 28 November 2025.Abstract We present Li lidar observations in the mesopause region above Kühlungsborn, Germany (54°N, 12°E). The lithium layer is mainly formed by meteoric ablation. But lithium has a much higher relative abundance in space debris compared with meteoroids, making it a good indicator of anthropogenic influence in the upper mesosphere.
M. Gerding +4 more
wiley +1 more source
The Astrophysical JournalCalcium, aluminum-rich inclusions (CAIs) are the oldest solids dated that formed in the solar system. Most CAIs in unmetamorphosed chondritic meteorites (chondrites; petrologic type ≤3.0) have uniform solar-like ^16 O-rich compositions (Δ ^17 O ∼ −24 ...
Samuel Ebert +4 more
doaj +1 more source
Homochirality in space – Selective enrichment of chiral molecules on chiral surfaces
BIO Web of Conferences, 2014 Life on Earth, as we know it to day, is inseparable from homochirality. The presence of an enantiomeric excess in carbonaceous chondrites is well documented; among the different hypotheses considered to explain this undisputed fact, we chose to ...
Marloie G. +4 more
doaj +1 more source
Aqueous alteration of carbonaceous chondrites: Evidence for preaccretionary alteration—A review [PDF]
, 1998 A. Bischoff
openalex +1 more source
The Polonnaruwa meteorite: oxygen isotope, crystalline and biological composition
, 2013 Results of X-Ray Diffraction (XRD) analysis, Triple Oxygen Isotope analysis and Scanning Electron Microscopic (SEM) studies are presented for stone fragments recovered from the North Central Province of Sri Lanka following a witnessed fireball event on ...
Gibson, Carl H. +9 more
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Boulders on Bennu: Low Apparent Thermal Inertia Caused by Thermal Fatigue Fractures
Geophysical Research Letters, Volume 52, Issue 21, 16 November 2025.Abstract Boulders covering the surfaces of asteroids Bennu and Ryugu have apparent thermal inertias substantially lower than their meteorite analogs. This has led to the inference that boulders on Bennu may be unlike any known meteorite. However, samples returned from Ryugu have a thermal inertia 3.5 times higher than the apparent thermal inertia ...
Catherine M. Elder
wiley +1 more source
The Astrophysical JournalThe origin of volatile depletion in the solar system remains a topic of intense debate. To further inform our understanding of the mechanisms involved, this study characterized the mass-dependent Zn, Cd, and Te isotope compositions and concentrations of ...
Elin M. Morton +8 more
doaj +1 more source
Antarctic Meteorite Newsletter. Volume 7, number 1: Sample requests and allocations [PDF]
Antarctic meteorites, achondrites, carbonaceous chondrites, ions, and stony-irons are ...
core +1 more source
‘Star Dust Memories’—A Brief History of the Murchison Carbonaceous Chondrite [PDF]
, 2003 Dermot A. Henry
openalex +1 more source
Pyrolysis-GC×GC-TOFMS to characterize carbonaceous chondrites [PDF]
, 2005 Using pyrolysis-GCxGC-TOFMS to analyze organic carbon in carbonaceous chondrites gives a massive increase in both sensitivity and structural information from samples when compared to traditional Py-GC ...
Gilmour, I. +6 more
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