Results 131 to 140 of about 706,787 (215)

Water and hydroxyl on asteroid Bennu: Reconciling remote observations with OSIRIS‐REx sample analysis

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract This study investigates the spatial distribution and spectral characteristics of the broad hydration feature near 3 μm across the surface of asteroid (101955) Bennu using OVIRS (OSIRIS‐REx Visible and InfraRed Spectrometer) data. We analyzed multiple global OVIRS data sets obtained at different times throughout the Bennu day, revealing ...
Hannah H. Kaplan   +5 more
wiley   +1 more source

The craters that never were: Anthropogenic origins of alleged impact structures in the Chiemgau region

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Public fascination with impact craters often drives bold speculations, but rigorous verification is critical. In southeastern Bavaria, numerous depressions have been proposed to represent impact craters associated with a catastrophic event in Celtic times (between 900 BC and 600 BC)—the so called “Chiemgau Impact.” To date, the evidence ...
Robert Huber   +2 more
wiley   +1 more source

Implications of Rugged Terrain on Groundwater Accessibility and Rural Livelihoods in Humid Tropical Region of Nigeria

open access: yes
This study investigates the implications of rugged terrain on groundwater accessibility and rural livelihoods in selected communities across Ebonyi, Enugu, Cross River, and Akwa Ibom States, Nigeria.
U.J Jimmy, I. E. Ansa, C.M Abraham
core   +1 more source

Plant endemism of the Balkan high‐mountain fens: a community‐level synthesis and their climate change perspective

open access: yesPlant Biology, EarlyView.
Balkan high‐mountain fens harbour unique endemic plant communities, with a west‐to‐east compositional gradient and local richness primarily shaped by palaeoclimate. As these fens have already experienced drier, warmer summers than at present, they may withstand climate change if actively and effectively protected. Abstract The phenomenon of Balkan high‐
M. Hájek   +20 more
wiley   +1 more source

A Natural History of ‘Annoyances’: Knowing Weeds and Weeding Knowledge in the Early Royal Society and its ‘Georgicall Committee’

open access: yesRenaissance Studies, EarlyView.
ABSTRACT Seventeenth‐century virtuosi often figured themselves as epistemic weeders, grubbing up rank thickets of accumulated error. In this article, I argue that these metaphors were unnerved by the shifting status of weeds—ostensibly unwanted plants from the margins of cultivated space, unploughed land or the disturbed soils between growing crops—in ...
Francis Taylor
wiley   +1 more source

Afghanistan, aerial view of rugged terrain in Hindu Kush Mountains

open access: yes, 1969
Afghanistan - Rugged ranges, Hindu Kush mts. [mountains]ColorVolume 34, Page
Forman, Harrison, 1904-1978
core  

Rare Earth Element Potential in the Araí Rift Metavolcanic, Central Brazil: Gamma‐Ray Signatures, Mineralogy and Exploration Implications

open access: yesTerra Nova, EarlyView.
ABSTRACT Although central Brazil hosts significant ion‐adsorption rare earth element (REE) deposits associated with A‐type granites, their coeval volcanic counterparts have been largely overlooked as exploration targets. This study demonstrates that acidic metavolcanic rocks of the Araí Group share strong radiometric, geochemical and mineralogical ...
Yuri Ribeiro   +3 more
wiley   +1 more source

Building a Continental‐Scale Geodetic Network: The Plate Boundary Observatory (PBO)

open access: yesPerspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract The Plate Boundary Observatory (PBO) transformed the use of geodesy in North America to study crustal deformation and plate boundary processes by establishing a continental‐scale, standardized, open‐access geodetic network. Built and operated by UNAVCO between 2003 and 2018 as part of the National Science Foundation (NSF)‐funded EarthScope ...
Emily E. Zawacki   +5 more
wiley   +1 more source

The Earth's Greatest Porous Media

open access: yesPerspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract How deeply does modern meteoric water circulate into the continental crust? How deep is the Earth's Critical Zone (CZ), the top layer of the continental lithosphere that co‐evolves with the atmosphere, hydrosphere, and biosphere, extending from vegetation canopy down to fresh bedrock and the base of active groundwater circulation?
Ying Fan   +3 more
wiley   +1 more source

The Ecological and Societal Roles of the Eurasian Lynx: Evidence and Assumptions

open access: yesMammal Review, Volume 56, Issue 4, December 2026.
Potential ecological and socioeconomic effects of Eurasian lynx. Lynx exert top‐down effects on the ecosystem via consumptive and non‐consumptive effects on prey, mesopredators, and lower trophic levels. Lynx also have positive and negative socioeconomic impacts.
Joe Premier   +19 more
wiley   +1 more source

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