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On the Habitability of Aquaplanets [PDF]

open access: yesChallenges, 2014
An Aquatic Habitability Index is proposed, based on Quantitative Habitability Theory, and considering a very general model for life. It is a primary habitability index, measuring habitability for phytoplankton in the first place.
Rolando Cardenas   +3 more
doaj   +2 more sources

Human affinity for rivers

open access: yesRiver, 2022
Human civilization prospers along rivers worldwide. Here, we investigated human–river relations by revealing the linkage between water and habitability for human settlements, and socioeconomic and cultural development across China.
Yichu Wang   +2 more
doaj   +1 more source

A revised lower estimate of ozone columns during Earth’s oxygenated history

open access: yesRoyal Society Open Science, 2022
The history of molecular oxygen (O2) in Earth’s atmosphere is still debated; however, geological evidence supports at least two major episodes where O2 increased by an order of magnitude or more: the Great Oxidation Event (GOE) and the Neoproterozoic ...
G. J. Cooke   +4 more
doaj   +1 more source

The waterbodies of the halo-volcanic Dallol complex: earth analogs to guide us, where to look for life in the universe

open access: yesFrontiers in Microbiology, 2023
Microbes are the Earth life forms that have the highest degree of adaptability to survive, live, or even proliferate in very hostile environments. It is even stated that microbes can cope with any extreme physico-chemical condition and are, therefore ...
Hugo Moors   +5 more
doaj   +1 more source

Quantifying the influence of coastal flood hazards on building habitability following Hurricane Irma [PDF]

open access: yesNatural Hazards and Earth System Sciences
Appropriate management of coastal flood risk is critical for creating resilient communities. An important part of this is estimating what buildings will become uninhabitable due to a flood event such as a tropical cyclone.
B. Nelson-Mercer   +5 more
doaj   +1 more source

Intact polar lipidome and membrane adaptations of microbial communities inhabiting serpentinite-hosted fluids

open access: yesFrontiers in Microbiology, 2023
The generation of hydrogen and reduced carbon compounds during serpentinization provides sustained energy for microorganisms on Earth, and possibly on other extraterrestrial bodies (e.g., Mars, icy satellites).
Kaitlin R. Rempfert   +7 more
doaj   +1 more source

Searching for Life, Mindful of Lyfe’s Possibilities

open access: yesLife, 2022
We are embarking on a new age of astrobiology, one in which numerous interplanetary missions and telescopes will be designed, built, and launched with the explicit goal of finding evidence for life beyond Earth.
Michael L. Wong   +3 more
doaj   +1 more source

The ETNA mission concept: Assessing the habitability of an active ocean world

open access: yesFrontiers in Astronomy and Space Sciences, 2022
Enceladus is an icy world with potentially habitable conditions, as suggested by the coincident presence of a subsurface ocean, an active energy source due to water-rock interactions, and the basic chemical ingredients necessary for terrestrial life ...
Ariel N. Deutsch   +16 more
doaj   +1 more source

Stellar-flare-driven evolution of primordial early exo-Earth atmospheres: Insights from the young M dwarf flare model

open access: yesAstronomy & Astrophysics
Context. M dwarfs are key targets for terrestrial exoplanet studies, with prospects for atmospheric spectroscopy. However, strong stellar magnetic activity and frequent flaring require modelling efforts to assess their impact on planetary atmospheres ...
Mamonova E.   +6 more
doaj   +1 more source

Multiverse Predictions for Habitability: Planetary Characteristics

open access: yesUniverse, 2022
Recent detections of potentially habitable exoplanets around sunlike stars demand increased exploration of the physical conditions that can sustain life, by whatever methods available.
McCullen Sandora   +3 more
doaj   +1 more source

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