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Extremophiles: Link between earth and astrobiology [PDF]

open access: yesZbornik Matice Srpske za Prirodne Nauke, 2008
Astrobiology studies the origin, evolution, distribution and future of life in the universe. The most promising worlds in Solar system, beyond Earth, which may harbor life are Mars and Jovian moon Europa.
Stojanović Dejan B.   +5 more
doaj   +1 more source

Human crew-related aspects for astrobiology research [PDF]

open access: yes, 2011
Several space agencies and exploration stakeholders have a strong interest in obtaining information on technical and human aspects to prepare for future extra-terrestrial planetary exploration.
Foing, B.H., Pletser, V., Thiel, C.S.
core   +2 more sources

Modeling pN2 through Geological Time: Implications for Planetary Climates and Atmospheric Biosignatures [PDF]

open access: yes, 2016
Nitrogen is a major nutrient for all life on Earth and could plausibly play a similar role in extraterrestrial biospheres. The major reservoir of nitrogen at Earth's surface is atmospheric N2, but recent studies have proposed that the size of this ...
Buick, R.   +5 more
core   +2 more sources

Metagenomic insights into S(0) precipitation in a terrestrial subsurface lithoautotrophic ecosystem

open access: yesFrontiers in Microbiology, 2015
The Frasassi and Acquasanta Terme cave systems in Italy host isolated lithoautotrophic ecosystems characterized by sulfur-oxidizing biofilms with up to 50% S(0) by mass.
Trinity eHamilton   +6 more
doaj   +1 more source

Preservation of glycine coordination compounds under a gamma radiation dose representative of natural mars radioactivity

open access: yesScientific Reports, 2022
The Martian subsurface is more favorable for organic preservation than its surface because of the shielding effect of rocks from cosmic rays and UV radiation with increasing depth.
Laura J. Bonales   +3 more
doaj   +1 more source

Machine Learning Algorithms Applied to Identify Microbial Species by Their Motility

open access: yesLife, 2021
(1) Background: Future missions to potentially habitable places in the Solar System require biochemistry-independent methods for detecting potential alien life forms.
Max Riekeles   +2 more
doaj   +1 more source

Red-edge position of habitable exoplanets around M-dwarfs

open access: yesScientific Reports, 2017
One of the possible signs of life on distant habitable exoplanets is the red-edge, which is a rise in the reflectivity of planets between visible and near-infrared (NIR) wavelengths.
Kenji Takizawa   +4 more
doaj   +1 more source

Adaptationism fails to resolve Fermi's paradox [PDF]

open access: yesSerbian Astronomical Journal, 2005
One of the most interesting problems in the nascent discipline of astrobiology is more than half-century old Fermi's paradox: why, considering extraordinary young age of Earth and the Solar System in the Galactic context, don't we perceive much older ...
Ćirković Milan M.   +2 more
doaj   +1 more source

The archaeal class Halobacteria and astrobiology: Knowledge gaps and research opportunities

open access: yesFrontiers in Microbiology, 2022
Water bodies on Mars and the icy moons of the outer solar system are now recognized as likely being associated with high levels of salt. Therefore, the study of high salinity environments and their inhabitants has become increasingly relevant for ...
Jia-Hui Wu   +8 more
doaj   +1 more source

A sustainable culture of tardigrades (Hypsibius dujardini) for astrobiological laboratory activities [PDF]

open access: yesEPJ Web of Conferences, 2019
Tardigrades are microscopic organisms that have gained importance in astrobiology in recent years. They have extreme survival ability and can enter into a state of latency for several years called cryptobiosis.
Núñez Patricia G.   +2 more
doaj   +1 more source

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