Results 21 to 30 of about 2,535 (185)

Reference-guided metagenomics reveals genome-level evidence of potential microbial transmission from the ISS environment to an astronaut's microbiome

open access: yesiScience, 2021
Summary: Monitoring microbial communities aboard the International Space Station (ISS) is essential to maintaining astronaut health and the integrity of life-support systems.
Michael D. Lee   +5 more
doaj   +1 more source

Astrobiology in Space: A Comprehensive Look at the Solar System

open access: yesLife, 2023
The field of astrobiology aims to understand the origin of life on Earth and searches for evidence of life beyond our planet. Although there is agreement on some of the requirements for life on Earth, the exact process by which life emerged from ...
Maarten L. De Mol
doaj   +1 more source

SPECTROModule: A modular in-situ spectroscopy platform for exobiology and space sciences

open access: yesActa Astronautica, 2020
The evolution of the solar system and the origin of life remain some of the most intriguing questions for humankind. Addressing these questions experimentally is challenging due to the difficulty of mimicking environmental conditions representative for ...
A. Sgambati   +11 more
semanticscholar   +1 more source

ABOUT EXOBIOLOGY: THE CASE FOR DWARF K STARS [PDF]

open access: yes, 2016
One of the most fundamental topics of exobiology concerns the identification of stars with environments consistent with life. Although it is believed that most types of main-sequence stars might be able to support life, particularly extremophiles ...
M. Cuntz, E. Guinan
semanticscholar   +1 more source

The Peak Absorbance Wavelength of Photosynthetic Pigments Around Other Stars From Spectral Optimization

open access: yesFrontiers in Astronomy and Space Sciences, 2021
In the search for life on other planets, the presence of photosynthetic surface vegetation may be detectable from the colors of light it reflects. On the modern Earth, this spectral reflectance is characterized by a steep increase in reflectance between ...
Owen R. Lehmer   +5 more
doaj   +1 more source

A False Encounter: An Interspecies Martian Tale [PDF]

open access: yesPulse, 2021
This project concerns a fictional scenario in which an AI rover encounters an alien life form in the crevices of a Martian rock. The seconds in which this encounter takes place are mysteriously wiped out from the rover’s Pancam metadata. It is speculated
Oscar Salguero
doaj  

Bacterial Metal Accumulation as a Strategy for Waste Recycling Management

open access: yesResources, 2023
Sustainable mechanisms for efficient and circular metal recycling have yet to be uncovered. In this study, the metal recycling potential of seven metal-resistant bacterial species (Deinococcus radiodurans, Deinococcus aerius, Bacillus coagulans ...
Denise Kölbi   +6 more
doaj   +1 more source

A Weakened Immune Response to Synthetic Exo-Peptides Predicts a Potential Biosecurity Risk in the Retrieval of Exo-Microorganisms

open access: yesMicroorganisms, 2020
The discovery of liquid water at several locations in the solar system raises the possibility that microbial life may have evolved outside Earth and as such could be accidently introduced into the Earth’s ecosystem.
Katja Schaefer   +9 more
doaj   +1 more source

Adaptations of endolithic communities to abrupt environmental changes in a hyper-arid desert

open access: yesScientific Reports, 2022
The adaptation mechanisms of microbial communities to natural perturbations remain unexplored, particularly in extreme environments. The extremophilic communities of halite (NaCl) nodules from the hyper-arid core of the Atacama Desert are self-sustained ...
Cesar A. Perez-Fernandez   +3 more
doaj   +1 more source

Présentation. Exobiologie, aspects historiques et épistémologiques

open access: yesCahiers François Viète, 2003
The definition of exobiology – the study of the origins, evolution and distribution of life in the universe, as well as of related structures and processes – raises the problem of the link between current and past studies on the origins of terrestrial ...
Florence Raulin Cerceau   +1 more
doaj   +1 more source

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