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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   +4 more sources

Multiverse Predictions for Habitability: The Number of Stars and Their Properties

open access: yesUniverse, 2019
In a multiverse setting, we expect to be situated in a universe that is exceptionally good at producing life. Though the conditions for what life needs to arise and thrive are currently unknown, many will be tested in the coming decades.
McCullen Sandora
doaj   +3 more sources

The habitability of super-Earths in Gliese 581 [PDF]

open access: bronze, 2007
Aims: The planetary system around the M star Gliese 581 consists of a hot Neptune (Gl 581b) and two super-Earths (Gl 581c and Gl 581d). The habitability of this system with respect to the super-Earths is investigated following a concept that studies the ...
Bean   +36 more
core   +2 more sources

Habits [PDF]

open access: yesCurrent Biology, 2017
What is a habit? One problem with the concept of habit has been that virtually everyone has their own ideas of what is meant by such a term. Whilst not eschewing folk psychology, it is useful to re-examine dictionary definitions of 'habit'. The Oxford Dictionary of English defines habit as "a settled or regular tendency or practice, especially one that
Robbins, TW, Costa, Rui M
openaire   +3 more sources

Multiverse Predictions for Habitability: Stellar and Atmospheric Habitability

open access: yesUniverse, 2022
Stellar activity and planetary atmospheric properties have the potential to strongly influence habitability. To date, neither have been adequately studied in the multiverse context, so there has been no assessment of how these effects impact the ...
McCullen Sandora   +3 more
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

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

Terminator Habitability: The Case for Limited Water Availability on M-dwarf Planets

open access: yesThe Astrophysical Journal, 2023
Rocky planets orbiting M-dwarf stars are among the most promising and abundant astronomical targets for detecting habitable climates. Planets in the M-dwarf habitable zone are likely synchronously rotating, such that we expect significant day–night ...
Ana H. Lobo   +3 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

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

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