Results 31 to 40 of about 2,729 (209)

Photochemical effects of Mars‐like UV irradiation on carboxylic acids in carbonaceous chondrites and expectations for abiotic background organics on Mars

Meteoritics &Planetary Science, EarlyView.
Abstract In the search for life on Mars, understanding the origin of preserved organics is critical. Expected sources include exogenous delivery, endogenous synthesis, and potentially life. Environmental processing by ultraviolet (UV) irradiation can alter these organics, obscuring hallmarks of their origin. To deconvolve these effects, we conducted an
D. K. Buckner, J. C. Aponte, A. C. Schuerger, D. I. Foustoukos, F. Seguin, M. B. Wilhelm, G. Cooper, A. J. Williams   +7 more
wiley   +1 more source

Exobiology: The NASA program [PDF]

, 1992
The goal of NASA's Exobiology Program is to understand the origin, evolution, and distribution of life in the universe. To do this, the Exobiology Program seeks to provide a critical framework and some key research to allow NASA to bear the combined ...
Rummel, John D., Harper, Lynn, Andersen, Dale   +2 more
core  

High-Quality Genome-Scale Models From Error-Prone, Long-Read Assemblies

Frontiers in Microbiology, 2020
Advances in nanopore-based sequencing techniques have enabled rapid characterization of genomes and transcriptomes. An emerging application of this sequencing technology is point-of-care characterization of pathogenic bacteria.
Jared T. Broddrick, Richard Szubin, Charles J. Norsigian, Jonathan M. Monk, Bernhard O. Palsson, Mary N. Parenteau   +5 more
doaj   +1 more source

Crop growth and viability of seeds on Mars and Moon soil simulants

Open Agriculture, 2019
If humans are going to establish a base on the Moon or on Mars they will have to grow their own crops. An option is to use Lunar and Martian regolith. These regoliths are not available for plant growth experiments, therefore NASA has developed regolith ...
Wamelink G.W.W., Frissel J.Y., Krijnen W.H.J., Verwoert M.R.   +3 more
doaj   +1 more source

Eurypsychrophilic acidophiles: From (meta)genomes to low-temperature biotechnologies

Frontiers in Microbiology, 2023
Low temperature and acidic environments encompass natural milieus such as acid rock drainage in Antarctica and anthropogenic sites including drained sulfidic sediments in Scandinavia.
Mark Dopson, Carolina González-Rosales, Carolina González-Rosales, David S. Holmes, David S. Holmes, Nadia Mykytczuk   +5 more
doaj   +1 more source

Investigating Terrestrial and Extraterrestrial Bioremediation through Microbial Action Using Raman Spectroscopy

Challenges
Sodium perchlorate is a toxic salt-based compound found both terrestrially, (due to pollution) and extraterrestrially on the surface of Mars. Perchlorate pollution poses a risk to agricultural-based activities as once it enters soils/waterways it can be ...
Daniel Keaney, Venkata V. B. Yallapragada, Liam O’Faolain, Ganga Chinna Rao Devarapu, Karen Finn, Brigid Lucey   +5 more
doaj   +1 more source

Microbial mediation of textures and minerals – terrestrial or parent body processes?

Open Astronomy, 2019
Evolution of chondritic parent body is influenced by thermal, impact metamorphism and aqueous alteration, studied in Mező-Madaras, Knyahinya, Mócs and Nyírábrány in aspect of high resolution in situ textural, mineralogical and organic geochemical ...
Polgári Márta, Gyollai Ildikó, Bérczi Szaniszló, Veres Miklós, Gucsik Arnold, Elemér Pál-Molnár   +5 more
doaj   +1 more source

Histoire des concepts de la vie extra-terrestre

Cahiers François Viète, 2003
Exobiology (or Bioastronomy or Astrobiology—with a few nuances) is a recent science in its own right, the result of the meeting of several disciplines (astronomy, biology, chemistry, geology, palaeontology), at the same time as the conquest of space was ...
Florence Raulin Cerceau
doaj   +1 more source

Behaviorist approaches to investigating memory and learning: A primer for synthetic biology and bioengineering

Communicative & Integrative Biology, 2021
The fields of developmental biology, biomedicine, and artificial life are being revolutionized by advances in synthetic morphology. The next phase of synthetic biology and bioengineering is resulting in the construction of novel organisms (biobots ...
Charles I. Abramson, Michael Levin
doaj   +1 more source

Overview: Exobiology in solar system exploration [PDF]

, 1992
In Aug. 1988, the NASA Ames Research Center held a three-day symposium in Sunnyvale, California, to discuss the subject of exobiology in the context of exploration of the solar system.
Carle, Glenn C., Schwartz, Deborah E.
core