Results 11 to 20 of about 36,963 (266)

Evaluating the Relationship Between the Area and Latitude of Large Igneous Provinces and Earth's Long‐Term Climate State

open access: yesGeophysical Monograph Series, Page 153-168., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Yuem Park   +3 more
wiley  

+1 more source

Predicted Diurnal Variation of the Deuterium to Hydrogen Ratio in Water at the Surface of Mars Caused by Mass Exchange with the Regolith [PDF]

open access: yes, 2019
Regolith on Mars exchanges water with the atmosphere on a diurnal basis and this process causes significant variation in the abundance of water vapor at the surface. While previous studies of regolith-atmosphere exchange focus on the abundance, recent in-
Hu, Renyu
core   +2 more sources

Gas-Driven Regolith-Sampling Strategy for Exploring Micro-Gravity Asteroids

open access: yesIEEE Access, 2020
Small celestial bodies contain abundant scientific information to understand the origin and evolution of the solar system. The acquisition and analysis of regolith sample is the most direct and effective way to explore the geological construction of ...
Zeng Zhao   +10 more
doaj   +1 more source

Geochemistry of a spheroidal weathering profile in a tropical mountainous landscape, Rio de Janeiro, Brazil

open access: yesAnais da Academia Brasileira de Ciências, 2022
Boulders are an important material in debris flow and their source is coupled with spheroidal weathering profiles that produce corestones. The goal of this work was to establish the geochemical transformations that produced corestones and distinguished ...
CARLA S. SILVEIRA   +4 more
doaj   +1 more source

A Survey on Extraterrestrial Habitation Structures with a Focus on Energy-Saving 3D Printing Techniques

open access: yesApplied Sciences, 2023
In the past two decades, various space agencies have shown great enthusiasm for constructing habitable structures on lunar and Martian surfaces. Consequently, several extraterrestrial structures have been proposed by different researchers.
Mitra Khalilidermani, Dariusz Knez
doaj   +1 more source

A proposal of lunar long duration method (Fabrication of lunar environment simulator and experimental validation)

open access: yesNihon Kikai Gakkai ronbunshu, 2014
A lunar long duration method which utilizes a characteristic of a very low thermal conductivity of lunar regolith has been proposed. The principle of this method is to put heater in desired depth of the regolith and heat up the regolith layer during ...
Ryota NOTSU   +2 more
doaj   +1 more source

The collisional evolution of undifferentiated asteroids and the formation of chondritic meteoroids [PDF]

open access: yes, 2016
Most meteorites are fragments from recent collisions experienced in the asteroid belt. In such a hyper-velocity collision, the smaller collision partner is destroyed, whereas a crater on the asteroid is formed or it is entirely disrupted, too.
Beitz, Eike   +3 more
core   +2 more sources

The importance of Phobos simulants: a review on our current knowledge

open access: yesFrontiers in Astronomy and Space Sciences, 2023
Phobos, a satellite of Mars, was successfully studied by flyby, orbiter, and landing missions to the Red Planet, but several questions remain about its origin, composition, and relationship to Mars.
Catarina Miranda   +10 more
doaj   +1 more source

Hypotheses for near-surface exchange of methane on Mars [PDF]

open access: yes, 2016
The Curiosity rover recently detected a background of 0.7 ppb and spikes of 7 ppb of methane on Mars. This in situ measurement reorients our understanding of the Martian environment and its potential for life, as the current theories do not entail any ...
Bloom, A. Anthony   +4 more
core   +3 more sources

DEM simulation of soil-tool interaction under extraterrestrial environmental effects [PDF]

open access: yes, 2017
In contrast to terrestrial environment, the harsh lunar environment conditions include lower gravity acceleration, ultra-high vacuum and high (low) temperature in the daytime (night-time).
Arroyo Alvarez de Toledo, Marcos   +3 more
core   +2 more sources

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