Results 131 to 140 of about 2,005,140 (156)
Meteoritics &Planetary Science, Volume 61, Issue 9, Page 2269-2283, September 2026.Abstract We report the discovery of the second (Al,Cu)‐alloy–bearing micrometeorite, FB‐A2, recovered from Mount Gariglione (southern Italy), representing the sixth such occurrence worldwide. Although chondritic in nature, FB‐A2 differs markedly from previously described microspherules.
Giovanna Agrosì +6 more
wiley +1 more source
Meteoritics &Planetary Science, Volume 61, Issue 9, Page 2233-2257, September 2026.Abstract We present the first micrometer‐scale, phase‐resolved compositional characterization of impact melt glass from the Hapcheon crater (~1.4 km apparent diameter), the first confirmed impact structure on the Korean Peninsula, integrating EPMA‐WDS (5 μm spot), confocal Raman spectroscopy (<1 μm spot), XRD, and 40Ar/39Ar step‐heating geochronology ...
Jin‐Young Lee +2 more
wiley +1 more source
Risk Analysis, Volume 46, Issue 9, September 2026.ABSTRACT The Fermi paradox may partly reflect technological self‐destruction acting as a Great Filter during post‐industrial development. Because the empirical record consists of a single civilization observed over an eighty‐year nuclear age, the exercise reported here is best understood as a structured, historically anchored scenario analysis rather ...
Vincenzo Alfano
wiley +1 more source
Rapid Increases in Heat‐Driven Extreme Moisture Demand in the Southern Amazon
Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.Abstract Extreme vapor pressure deficit (EVPD), representing the 5% hottest and driest surface air conditions, has risen rapidly over the Southern Amazon during the dry season, especially over forested areas. Its frequency has increased by 7 ± $\pm $ 1.5% (or 11 more dry season days) per decade, and its intensity has increased at rates faster than that
Alex Chang +9 more
wiley +1 more source
Spiky Bursts of Energetic Electron Beams Upstream of Nonstationary Quasi‐Perpendicular Shocks
Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.Abstract Energetic electron beams play a crucial role in collisionless shocks by driving upstream plasma waves and providing seed populations for diffusive shock acceleration. However, the processes responsible for their generation at quasi‐perpendicular shocks remain poorly understood.
Ao Guo +4 more
wiley +1 more source
High energy cosmic ray air showers and small-x QCD [PDF]
, 2005 We discuss that hadron-induced atmospheric air showers from ultra-high energy cosmic rays are sensitive to QCD interactions at very small momentum fractions x where nonlinear effects should become important.
Dumitru, Adrian Bogdan +2 more
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Cosmic strings and scalar tensor gravity [PDF]
, 1999 This thesis is concerned with the study of cosmic strings. We studied the values for the Higgs mass and string coupling for which the gravitational effect of an infinite cosmic string in the context of the Einstein theory is not only locally but also ...
Da Silva, Caroline Dos Santos +1 more
core
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The Astroparticle Detectors Array—An Educational Project in Cosmic Ray Physics
Symmetry, 2023Marco Arcani +2 more
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New physics from the polarized light of the cosmic microwave background
Nature Reviews Physics, 2022Eiichiro Komatsu
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