Results 21 to 30 of about 189,491 (285)

The Effect of Core Formation on Surface Composition and Planetary Habitability [PDF]

open access: yesAstrophysical Journal Letters, 2021
The melt productivity of a differentiated planet's mantle is primarily controlled by its iron content, which is itself approximated by the planet's core mass fraction (CMF).
B. Dyck, J. Wade, R. Palin
semanticscholar   +1 more source

Habitability Models for Planetary Sciences [PDF]

open access: yesBulletin of the AAS, 2021
Habitability has been generally defined as the capability of an environment to support life.Ecologists have been using Habitat Suitability Models (HSMs) for more than four decades to study the habitability of Earth from local to global scales.Astrobiologists have been proposing different habitability models for some time, with little integration and ...
Abel Méndez   +35 more
openaire   +1 more source

Was the Kalkarindji Continental Flood Basalt Province a Driver of Environmental Change at the Dawn of the Phanerozoic?

open access: yesGeophysical Monograph Series, Page 435-447., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Peter E. Marshall   +2 more
wiley  

+3 more sources

Dynamical Habitability of Planetary Systems [PDF]

open access: yesAstrobiology, 2010
The problem of the stability of planetary systems, a question that concerns only multiplanetary systems that host at least two planets, is discussed. The problem of mean motion resonances is addressed prior to discussion of the dynamical structure of the more than 350 known planets.
Dvorak, Rudolf   +24 more
openaire   +6 more sources

System Architecture and Planetary Obliquity: Implications for Long-term Habitability [PDF]

open access: yesAstronomical Journal, 2022
In the search for life beyond our solar system, attention should be focused on those planets that have the potential to maintain habitable conditions over the prolonged periods of time needed for the emergence and expansion of life as we know it.
P. Vervoort   +4 more
semanticscholar   +1 more source

The Effect of Seafloor Weathering on Planetary Habitability [PDF]

open access: yesAstrophysical Journal, 2020
Conventionally, a habitable planet is one that can support liquid water on its surface. Habitability depends on temperature, which is set by insolation and the greenhouse effect, due mainly to CO2 and water vapor.
J. Chambers
semanticscholar   +1 more source

Quantifying the Key Factors Affecting the Escape of Planetary Atmospheres

open access: yesThe Astrophysical Journal, 2023
The habitability of Earth-like planets is an increasingly important subject in astrophysics and in planetary sciences. Atmospheric escape plays a vital role in the evolution of the habitability of Earth-like planets.
J. Luo, H.-Q. He, G.-S. Tong, Jiao Li
doaj   +1 more source

Hard rock dark biosphere and habitability

open access: yesFrontiers in Astronomy and Space Sciences, 2023
The discovery that most of the prokaryotic diversity and biomass on Earth resides in the deep subsurface, calls for an improved definition of habitability, which should consider the existence of dark biospheres in other planets and moons of the Solar ...
Cristina Escudero   +2 more
doaj   +1 more source

Impact of Changing Stellar and Planetary Magnetic Fields on (Exo)planetary Environments and Atmospheric Mass Loss

open access: yesThe Astrophysical Journal, 2023
The magnetic activity of a star—which modulates the stellar wind outflow—shapes the immediate environments of orbiting (exo)planets and induces atmospheric loss, thereby impacting their habitability.
Sakshi Gupta   +2 more
doaj   +1 more source

86Kr excess and other noble gases identify a billion-year-old radiogenically-enriched groundwater system

open access: yesNature Communications, 2022
Noble gases confirm billion-year groundwater residence times and external fluxes in deep crustal settings globally with implications for subsurface habitability and economic reservoir formation over planetary timescales both on Earth and ...
O. Warr   +6 more
doaj   +1 more source

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