Results 31 to 40 of about 1,881 (201)

Gypsum Gardens: Self‐Assembled Tubular Structures of Calcium Sulfate with Relevance for the Detection of Extraterrestrial Life

Angewandte Chemie International Edition, EarlyView.
Chemical gardens are self‐assembled architectures with “life‐like” morphologies that form in the absence of any biological activity. Here we show that such structures can also be obtained by contacting reservoirs of calcium and sulfate ions, under conditions that plausibly emulate those prevailing on early Mars.
Selina Reigl, Elisabeth Wagner, Carlos Pimentel, Werner Kunz, Alexander E. S. Van Driessche, Matthias Kellermeier   +5 more
wiley   +1 more source

Prolonged Multi‐Phase Magmatism Due To Plume‐Lithosphere Interaction as Applied to the High Arctic Large Igneous Province

Geochemistry, Geophysics, Geosystems
The widespread High Arctic Large Igneous Province (HALIP) exhibits prolonged melting over more than 50 Myr, an observation that is difficult to reconcile with the classic view that large igneous provinces (LIPs) originate from melting in plume heads ...
Björn H. Heyn, Grace E. Shephard, Clinton P. Conrad   +2 more
doaj   +1 more source

Green Revenue Generation and Sales Contribution: Are Consumers Willing to Bear the Cost of Sustainability?

Business Strategy and the Environment, EarlyView.
ABSTRACT This study examines the strategic implications of environmental activities on firm performance, specifically focusing on contribution per dollar sale and operational cost efficiency within US companies. Using a comprehensive dataset of 17,735 firm‐year observations from 2008 to 2023, we find that firms engaging in green revenue generation do ...
Enayet Karim, Mahmoud Elmarzouky, Doaa Shohaieb   +2 more
wiley   +1 more source

Organic semiconductors: A versatile next‐generation photovoltaics technology

Information &Functional Materials, EarlyView.
Organic semiconductors exhibit excellent environmental and biocompatibility, as compared to other emerging materials, thereby offering wider range of possible photovoltaic applications beyond traditional solar farms. However, to fully construct practical and commercially attractive devices, the factors specific to intended type of PV applications must ...
Top Archie Dela Peña, Wenyan Su, Yuxiang Li, Qunping Fan, Yiqiang Zhang, Cenqi Yan, Kui Feng, Ashraf Uddin, Yeng Ming Lam, Ruijie Ma, Gang Li   +10 more
wiley   +1 more source

A Novel Metric for Assessing Climatological Surface Habitability

The Planetary Science Journal
Planetary surface habitability has so far been considered, in the main, on a global scale. The increasing number of 3D modelling studies of (exo)planetary climate has highlighted the need for a more nuanced understanding of surface habitability.
Hannah L. Woodward, Andrew J. Rushby, Nathan J. Mayne   +2 more
doaj   +1 more source

Double Trouble: Two Transits of the Super-Earth GJ 1132 b Observed with JWST NIRSpec G395H

The Astrophysical Journal Letters, 2023
The search for rocky planet atmospheres with JWST has focused on planets transiting M dwarfs. Such planets have favorable planet-to-star size ratios, enhancing the amplitude of atmospheric features.
E. M. May, Ryan J. MacDonald, Katherine A. Bennett, Sarah E. Moran, Hannah R. Wakeford, Sarah Peacock, Jacob Lustig-Yaeger, Alicia N. Highland, Kevin B. Stevenson, David K. Sing, L. C. Mayorga, Natasha E. Batalha, James Kirk, Mercedes López-Morales, Jeff A. Valenti, Munazza K. Alam, Lili Alderson, Guangwei Fu, Junellie Gonzalez-Quiles, Joshua D. Lothringer, Zafar Rustamkulov, Kristin S. Sotzen   +21 more
doaj   +1 more source

Spectroscopic Detection of Biosignatures in Natural Ice Samples as a Proxy for Icy Moons

Life, 2023
Some of the icy moons of the solar system with a subsurface ocean, such as Europa and Enceladus, are the targets of future space missions that search for potential extraterrestrial life forms.
Francisco Calapez, Rodrigo Dias, Rute Cesário, Diogo Gonçalves, Bruno Pedras, João Canário, Zita Martins   +6 more
doaj   +1 more source

Terrestrial Lithium Exploration Adapted From Raman Diagnosis of Phyllosilicates for Mars

Journal of Raman Spectroscopy, EarlyView.
Analyses using a benchtop Raman instrument at the University of Aberdeen and a prototype instrument for remote deployment on Mars based at the University of Leicester successfully discriminated between four varieties of mica (possibly lithium‐rich rocks).
M. McHugh, J. R. T. Armstrong, J. Parnell, H. N. Lerman, C. Malherbe, I. B. Hutchinson   +5 more
wiley   +1 more source

A Tectonic Manifesto

Perspectives of Earth and Space Scientists, 2023
Tectonics is the scientific discipline that studies the relationship between planetary convection and surface deformation and magmatism. In recent years global tectonic regimes and planetary evolution have become foci of astronomical and planetological ...
Robert Stern, Taras Gerya, Paul Tackley
doaj   +1 more source

Maximizing Scientific Exploitation of Raman Spectroscopy With A.C.M.E. (Atmospheric Chamber for Measurements in Environment)

Journal of Raman Spectroscopy, EarlyView.
Simulated planetary gas detection using the A.C.M.E. chamber and a novel hollow‐core fiber Raman sensor. Controlled atmospheric mixtures were used to evaluate the sensor’s performance, demonstrating its capability to detect gases such as CO₂, O₂, and N₂. The results support the applicability of the HCF‐based Raman sensor in future planetary exploration
I. Reyes‐Rodríguez, S. Julve‐Gonzalez, M. Veneranda, J. A. Manrique, A. Sanz‐Arranz, M. Mayoral‐Yagüe, S. Jiménez‐Blázquez, L. Asenjo‐Estévez, E. Charro‐Huerga, J. Delgado‐Iglesias, E. A. Lalla, B. Barrios‐Areinamo, F. Rull, G. Lopez‐Reyes   +13 more
wiley   +1 more source