Results 41 to 50 of about 58,525 (269)

Multiverse Predictions for Habitability: Origin of Life Scenarios

open access: yesUniverse, 2023
If the origin of life is rare and sensitive to the local conditions at the site of its emergence, then, using the principle of mediocrity within a multiverse framework, we may expect to find ourselves in a universe that is better than usual at creating ...
McCullen Sandora   +4 more
doaj   +1 more source

Evaluating the Microbial Habitability of Rogue Planets and Proposing Speculative Scenarios on How They Might Act as Vectors for Panspermia

open access: yesLife, 2021
There are two types of rogue planets, sub-brown dwarfs and “rocky” rogue planets. Sub-brown dwarfs are unlikely to be habitable or even host life, but rocky rogue planets may have a liquid ocean under a thick atmosphere or an ice layer.
Dirk Schulze-Makuch, Alberto G. Fairén
doaj   +1 more source

Stellar flares versus luminosity: XUV-induced atmospheric escape and planetary habitability [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society: Letters, 2020
Space weather plays an important role in the evolution of planetary atmospheres. Observations have shown that stellar flares emit energy in a wide energy range (1030–1038 erg), a fraction of which lies in X-rays and extreme ultraviolet (XUV).
D. Atri, S. C. Mogan
semanticscholar   +1 more source

The habitability of stagnant-lid Earths around dwarf stars [PDF]

open access: yes, 2018
The habitability of a planet depends on various factors, such as delivery of water during the formation, the co-evolution of the interior and the atmosphere, as well as the stellar irradiation which changes in time.
Godolt, Mareike   +6 more
core   +2 more sources

The Microbial Community of a Terrestrial Anoxic Inter-Tidal Zone: A Model for Laboratory-Based Studies of Potentially Habitable Ancient Lacustrine Systems on Mars

open access: yesMicroorganisms, 2018
Evidence indicates that Gale crater on Mars harboured a fluvio-lacustrine environment that was subjected to physio-chemical variations such as changes in redox conditions and evaporation with salinity changes, over time.
Elliot Curtis-Harper   +5 more
doaj   +1 more source

Modeling Virus and Bacteria Populations in Europa’s Subsurface Ocean

open access: yesLife, 2022
The search for life in the universe is often informed by the study of “extreme” environments on Earth, which provide analogs for habitable locations in the Solar System, and whose microbial inhabitants may therefore also serve as analogs for potential ...
Adriana C. Gomez-Buckley   +2 more
doaj   +1 more source

Atmospheric escape from the TRAPPIST-1 planets and implications for habitability [PDF]

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2017
Significance The search for exoplanets has rapidly emerged as one of the most important endeavors in astronomy. This field received a major impetus with the recent discovery of seven temperate Earth-sized exoplanets orbiting the nearby ultracool dwarf ...
C. Dong   +5 more
semanticscholar   +1 more source

A Scientometric Prediction of the Discovery of the First Potentially Habitable Planet with a Mass Similar to Earth [PDF]

open access: yes, 2010
The search for a habitable extrasolar planet has long interested scientists, but only recently have the tools become available to search for such planets.
Enrico Scalas   +2 more
core   +4 more sources

Numerical analysis of air environment comfort in ship accommodation cabin

open access: yesZhongguo Jianchuan Yanjiu, 2018
[Objectives] This paper presents a numerical study of the air environment comfort in a four-person accommodation cabin of a ship in order to analyze the influence of different air supply schemes on the air environment.[Methods] The evaluating indicators ...
QI Haiqing, LI Zhiyin, ZHOU Lihua
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

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