Results 21 to 30 of about 1,881 (201)

Mineral dust increases the habitability of terrestrial planets but confounds biomarker detection

open access: yesNature Communications, 2020
In this study, the authors investigate in the influence of atmospheric dust on the habitability of exoplanets. They find that atmospheric dust may postpone planetary water loss; for tidally locked planets in particular, dust can significantly widen the ...
Ian A. Boutle   +7 more
doaj   +1 more source

A Radiative-convective Model for Terrestrial Planets with Self-consistent Patchy Clouds

open access: yesThe Planetary Science Journal, 2023
Clouds are ubiquitous: they arise for every solar system planet that possesses an atmosphere and have also been suggested as a leading mechanism for obscuring spectral features in exoplanet observations.
James D. Windsor   +5 more
doaj   +1 more source

Binary Gravitational Perturbations and Their Influence on the Habitability of Circumstellar Planets

open access: yesFrontiers in Astronomy and Space Sciences, 2021
In order to assess the habitability of planets in binary star systems, not only astrophysical considerations regarding stellar and atmospheric conditions are needed, but orbital dynamics and the architecture of the system also play an important role. Due
Elke Pilat-Lohinger, Ákos Bazsó
doaj   +1 more source

Energetics of the Citric Acid Cycle in the Deep Biosphere

open access: yesGeophysical Monograph Series, Page 303-327., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Peter A. Canovas III, Everett L. Shock
wiley  

+1 more source

User-friendly carbon-cycle modelling and aspects of Phanerozoic climate change

open access: yesApplied Computing and Geosciences
Carbon-cycle modelling is essential for testing the main carbon sources and sinks as climate forcings, and we introduce and describe GEOCARB_NET, a graphical user interface for the geologic carbon and sulfur cycle model GEOCARBSULFvolc.
Trond H. Torsvik   +3 more
doaj   +1 more source

The Carbon-deficient Evolution of TRAPPIST-1c

open access: yesThe Astrophysical Journal, 2023
Transiting planets orbiting M dwarfs provide the best opportunity to study the atmospheres of rocky planets with current facilities. As JWST enters its second year of science operations, an important initial endeavor is to determine whether these rocky ...
Katie E. Teixeira   +3 more
doaj   +1 more source

Mantle Flow and Anisotropy in Subduction Zones: Modeling and Clustering of Olivine Textures

open access: yesGeochemistry, Geophysics, Geosystems
The mantle near Earth's subduction zones endures intense deformation that generates anisotropic rock textures. These textures can be observed seismically and modeled geodynamically, but the complexity of this deformation makes analyses of these textures ...
Yijun Wang   +3 more
doaj   +1 more source

Habitable Zones in Binary Star Systems: A Zoology

open access: yesGalaxies, 2020
Several concepts have been brought forward to determine where terrestrial planets are likely to remain habitable in multi-stellar environments. Isophote-based habitable zones, for instance, rely on insolation geometry to predict habitability, whereas ...
Siegfried Eggl   +2 more
doaj   +1 more source

Toward Energy Justice Principles for Sustainable Lithium‐Ion Battery Technologies

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
Prefeasibility life cycle assessment is used to evaluate the environmental, social, and supply chain impacts of lithium‐ion battery technologies, and the concept of distributional energy justice is discussed. By comparing chemistries and use cases, it reveals inequities in material sourcing and technology access.
Isabella D. R. Stephens   +4 more
wiley   +1 more source

Degassing of CO2 triggers large-scale loss of helium from magma oceans

open access: yesCommunications Earth & Environment
The moon-forming impact caused widespread melting and vaporization of the proto-Earth, leading to the formation of a protolunar disk1,2. Volatile elements trapped in the inner parts of the disk condensed together with heavier elements into a global magma
Anne H. Davis, Razvan Caracas
doaj   +1 more source

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