Results 51 to 60 of about 5,203 (251)
ChallengesSodium 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 +5 more
doaj +1 more source
Survey of Vacuum UltraViolet experimental data in relation to radiation characterization for Earth high-speed re-entry [PDF]
arXiv, 2020 This contribution is a survey of the available experimental radiation data measured in the VUV range related to hypersonic atmospheric entry. The objective is to identify the experimental datasets already gathered during aerothermodynamics studies for preparing sample return missions, and future.
arxiv
Microbial Ecology of Permafrost Soils: Populations, Processes, and Perspectives
Permafrost and Periglacial Processes, EarlyView.ABSTRACT Permafrost microbial research has flourished in the past decades, due in part to improvements in sampling and molecular techniques, but also the increased focus on the permafrost greenhouse gas feedback to climate change and other ecological processes in high latitude and alpine permafrost soils.
Mark P. Waldrop +33 more
wiley +1 more source
Space Economy and Sustainability: A Systematic Review
Sustainable Development, EarlyView.ABSTRACT The space economy is booming thanks to the increasing investment of government agencies, private companies, and venture capitalists. From the beginning of the New Space era, the array of actors involved in the development of technologies for extra‐terrestrial activities has increased, as well as the downstream applications that foster ...
Marianna Valente +2 more
wiley +1 more source
Light Regimes Shape Utilization of Extracellular Organic C and N in a Cyanobacterial Biofilm
mBio, 2016 Although it is becoming clear that many microbial primary producers can also play a role as organic consumers, we know very little about the metabolic regulation of photoautotroph organic matter consumption.
Rhona K. Stuart +10 more
doaj +1 more source
Investigation of Spaceflight Induced Changes to Astronaut Microbiomes
Frontiers in Microbiology, 2021 The International Space Station (ISS) is a uniquely enclosed environment that has been continuously occupied for the last two decades. Throughout its operation, protecting the health of the astronauts on-board has been a high priority.
Michael D. Morrison +9 more
doaj +1 more source
Emerging Priorities for Microbiome Research
Frontiers in Microbiology, 2020 Microbiome research has increased dramatically in recent years, driven by advances in technology and significant reductions in the cost of analysis. Such research has unlocked a wealth of data, which has yielded tremendous insight into the nature of the ...
Chad M. Cullen +22 more
doaj +1 more source
About the presence of arsenic in prebiotic species
BIO Web of Conferences, 2014 The recent publication that some bacteria could use arsenic instead of phosphorus for building their DNA triggered a large controversy in the astro/exobiology community. Most comments claim that such a substitution is not possible.
Ellinger Y. +3 more
doaj +1 more source
Geophysical Research Letters, Volume 52, Issue 5, 16 March 2025.Abstract We report, for the first time, the impact of interplanetary coronal mass ejections (ICME) on the recently discovered O(1S) 557.7 nm dayglow emission in the Martian atmosphere. While there are a few studies on the seasonal variation of 557.7 nm dayglow emission available in the literature, the impact of ICME has not been investigated so far ...
Aadarsh Raj Sharma +8 more
wiley +1 more source
Breve historia de la astrobiología en Argentina [PDF]
arXiv, 2020 Astrobiology or exobiology is a relatively new area of science that investigates the possibilities of finding life in other places in the universe. This not only includes the exploration of planets near or distant to Earth, but also the exploration of our own planet in the study of the origin and evolution of life. Given the complexity of the questions
arxiv