Results 121 to 130 of about 6,619,346 (229)

Quantitative Morphometry of the Ape Cave Lava Tube: A Statistical Framework for Terrestrial Analogue Studies of Planetary Subsurface Voids

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 11, November 2026.
Abstract Recent discoveries suggest that intact lava tubes exist in the Moon and Mars, crucial for establishing long‐term habitable areas to protect future lunar and Martian dwellers from surface risks. Considering planetary lava tubes as potential natural shelters requires understanding their internal complexity, which is challenging due to the lack ...
Sarai Montañez Muñoz   +3 more
wiley   +1 more source

Architectural/Environmental Handbook for Extraterrestrial Design [PDF]

open access: yes, 1970
Handbook on environmental and space utilization criteria for design of extraterrestrial manned spacecraft and ...
Fowler, B. F.   +4 more
core  

Integrated Ground–Air–Space Exploration Technology of Jingpo Lake Lava Tubes

open access: yesSpace: Science & Technology
Lava tubes play an important role in base construction and understanding planetary geological development on extraterrestrial bodies. However, our understanding of lava tube morphology on Earth as a reference for extraterrestrial bodies remains limited ...
Teng Hu   +19 more
doaj   +1 more source

Beyond Precipitation Deficit: Driver‐Based Classification of Hydrological Droughts in an Alpine Basin

open access: yesWater Resources Research, Volume 62, Issue 11, November 2026.
Abstract Hydrological droughts in mountain basins can arise from different combinations of precipitation deficits, snow accumulation and melt anomalies, and seasonal storage conditions. Here, we develop a deterministic, locally calibrated framework to classify recurrent hydro‐meteorological pathways associated with streamflow drought onset in the Upper
Andrea Galletti   +4 more
wiley   +1 more source

Reduced Longwave Absorption of Magnesium Sulfate Aerosol as an Alternative to Sulfuric Acid for Stratospheric Aerosol Injection

open access: yesGeophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Aqueous sulfuric acid is the benchmark sulfate aerosol for stratospheric aerosol injection (SAI), but H2SO4 ${\mathrm{H}}_{2}{\text{SO}}_{4}$/H2 ${\mathrm{H}}_{2}$O aerosol absorbs strongly in the infrared, producing longwave warming that significantly offsets its shortwave cooling. Here, we evaluate magnesium sulfate (MgSO4 ${\text{MgSO}}_{4}$
A. Odelskii   +6 more
wiley   +1 more source

Extraterrestrial Life, a Bibliography. Part I, Report Literature, 1952 - 1964 [PDF]

open access: yes, 1964
Annotated bibliography on extraterrestrial ...

core  

Effect of Laboratory Reagents for Cleaning Modern Contamination on the δ15N Integrity of Nitrogen‐Poor Samples

open access: yesRapid Communications in Mass Spectrometry, Volume 40, Issue 19, 15 October 2026.
ABSTRACT Rationale Nitrogen isotope values have been widely used for tracing ancient biogeochemical processes, but contaminant‐sensitive materials, such as Precambrian sedimentary rocks, meteorites, or returned extraterrestrial samples, often have low nitrogen levels and are thus vulnerable to modern organic contamination.
Kunmanee Bubphamanee   +2 more
wiley   +1 more source

Extraterrestrial application of X-ray diffraction [PDF]

open access: yes, 1966
Feasibility of applying X-ray diffraction to extraterrestrial exploration of lunar surface and earth-like ...
Herglotz, H. K.
core  

Continuous Online Semantic Implicit Representation for Autonomous Ground Robot Navigation in Unstructured Environments

open access: yesRobotics
While mobile ground robots have now the physical capacity of travelling in unstructured challenging environments such as extraterrestrial surfaces or devastated terrains, their safe and efficient autonomous navigation has yet to be improved before ...
Quentin Serdel   +2 more
doaj   +1 more source

AEM of extraterrestrial materials [PDF]

open access: yes, 1982
Modifications to and maintenance of the JEOL 100 CX electron microscope are discussed. Research activity involving extraterrestrial matter, cosmic dust, stratosphere dust, and meteorites is ...
Mackinnon, I. D. R.
core  

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