Results 51 to 60 of about 11,077 (173)

Oleoscopicity and Organic Deliquescence of Hydrophobic Compounds Under a Hydrocarbon Atmosphere

Journal of Physical Organic Chemistry, Volume 39, Issue 10, October 2026.
Hydrophobic compounds can acquire hydrocarbon vapor from organic‐enriched atmospheres and may deliquesce by dissolving completely in the acquired solvent. We report trends in oleoscopicity for a variety of organic compounds under an atmosphere of n‐hexane as a model hydrocarbon solvent. ABSTRACT This paper examines the acquisition of organic solvent by
Steven K. Skaggs, Kevin A. Smith, Margaret J. Ankrom, Paul J. Bracher   +3 more
wiley   +1 more source

Making a Massive Open Online Course (MOOC) about Astrobiology: Why? For Whom? How?

, 2022
Massive Open Online Courses (MOOCs) are becoming the textbooks of the 21st century. I describe what a MOOC is, and try to answer the questions: Why make a MOOC? Who are MOOCs for? and How to make a MOOC?
Lineweaver, Charles
core   +1 more source

The Water Activity of Mars-relevant Multicomponent Brines: The Changing Influence of Perchlorate on Habitability over Time

The Planetary Science Journal, 2023
Low water activity limits the habitability of aqueous environments, and salts present on Mars are known to reduce water activity. As environmental brines are not pure solutions of a single salt, predicting their water activity is difficult without direct
Adam H. Stevens, Charles S. Cockell
doaj   +1 more source

The Evolution of Autonomous Systems for Planetary Cave Exploration: A Review

Journal of Field Robotics, Volume 43, Issue 6, Page 4094-4115, September 2026.
ABSTRACT The exploration of Subsurface Access Points (SAPs), such as lava tubes on the Moon and Mars, has gained significant interest due to their potential as stable environments shielded from surface radiation and temperature extremes. These sites are considered high‐value targets for detecting water and signs of ancient life, and assessing their ...
Sarah Swinton, Daniel Mitchell, Jamie Blanche, Euan McGookin, David Flynn   +4 more
wiley   +1 more source

The NASA Astrobiology Roadmap

, 2003
The NASA Astrobiology Roadmap provides guidance for research and technology development across the NASA enterprises that encompass the space, Earth, and biological sciences.
Turner, William W., Spormann, Alfred M., Trent, Jonathan D., Falkowski, Paul G., Farmer, Jack D., Woolf, Neville J., Pilcher, Carl B., Jakosky, Bruce M., Yorke, Harold W., Liskowsky, David R., Nealson, Kenneth H., Benner, Steven A., Knoll, Andrew, Meyer, Michael A., Des Marais, David J., Deamer, David, Allamandola, Louis J., Meadows, Victoria S., Hedges, S. Blair, Boss, Alan P.   +19 more
core   +1 more source

Uranus's Highly Nonaxisymmetric Magnetopause and Its Impact on Magnetic Reconnection

Journal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract Mass and energy fluxes from the solar wind can access a planet's magnetosphere through dayside magnetic reconnection. The plasma and magnetic field conditions on either side of the magnetopause determine whether reconnection is suppressed. However, magnetosheath conditions are sensitive to the shape of the magnetopause, and deviations from ...
Jack H. Crump, Ali H. Sulaiman, Xianzhe Jia, Sophia Zomerdijk‐Russell, Adam Masters   +4 more
wiley   +1 more source

Microscale Hyperspectral Mapping of a Kilometer of Mantle Rocks: Insights Into Low‐Temperature Serpentinization Systems From the Oman Drilling Program Cores

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract Characterizing products of water‐rock interactions in low‐temperature serpentinization of ultramafic rock is key to reconstructing fluid alteration histories of the crust and identifying subsurface habitable environments. We analyzed terrestrial peridotites from the Samail ophiolite using visible to near‐infrared (VNIR‐SWIR) microimaging ...
Lucia Mandon, Bethany L. Ehlmann, Rebecca N. Greenberger, Eric T. Ellison, Lisa E. Mayhew, Alexis S. Templeton   +5 more
wiley   +1 more source

Atmospheric Microbial Transport to Antarctica and Its Ecological Implications: A Systematic Review

Environmental Microbiology, Volume 28, Issue 9, September 2026.
Atmospheric transport to Antarctica operates via long‐range advection, marine aerosolization, and local resuspension, acting as a strict ecological filter. This selective barrier could actively shape local ecosystems by seeding them with functionally distinct, stress‐adapted microbial pioneers capable of surviving extreme conditions.
Rodrigo Goldenberg‐Barbosa, Anna Donato, Dafne Anjos, Letícia Eller, Heitor Evangelista, Cesar Amaral   +5 more
wiley   +1 more source

Subsurface robotic exploration for geomorphology, astrobiology and mining during MINAR6 campaign, Boulby Mine, UK : part I (Rover development) [PDF]

, 2019
Acknowledgement. The authors of this paper would like to thank Kempe Foundation for its generous funding support to develop KORE, the workshop at the Teknikens Hus, Luleå, for their invaluable and unconditional support in helping with the fabrication of ...
Paling, Sean, Zorzano, María-Paz, Vakkada Ramachandran, Abhilash,, Martín-Torres, F. J., Mathanlal, Thasshwin,, Martín-Torres, Javier, Cockell, Charles S., Martin-Torres, Javier,, Cockell, Charles,, Edwards, Tom, Mathanlal, Thasshwin, Zorzano, María Paz, Zorzano, María-Paz,, Bhardwaj, Anshuman, Bhardwaj, Anshuman,, Edwards, Tom,, Paling, Sean,, Vakkada Ramachandran, Abhilash   +17 more
core   +1 more source

Physiological Differentiation within a Single-Species Biofilm Fueled by Serpentinization

mBio, 2011
Carbonate chimneys at the Lost City hydrothermal field are coated in biofilms dominated by a single phylotype of archaea known as Lost City Methanosarcinales. In this study, we have detected surprising physiological complexity in single-species biofilms,
William J. Brazelton, Mausmi P. Mehta, Deborah S. Kelley, John A. Baross   +3 more
doaj   +1 more source