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Showing 1 to 20 of 23 for “"lunar regolith"”.
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Multispecies reactor design for fluorination reduction of lunar regolith
Citronellal was converted over sulphonated polystyrene resin catalysts of different acid loading. The catalysts had been prepared sulphonating a commercial polystyrene resin with sulfuric acid. Catalyst activities were screened in the liquid phase and in the gas phase in a temperature range of 50 …
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Automated Plant Morphological Assessment and Microbial Community Monitoring in Simulated Lunar Regolith
<p>Upcoming lunar bases will need to leverage in-situ resources to ensure long-term sustainability and reduce mission costs. One key challenge is food production, which could be addressed by growing crops in lunar regolith-based substrates. However, lunar regolith lacks essential nutrients, …
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Cryogenic penetration and relaxation behavior of dry and icy lunar regolith simulants
… space agencies have identified a return to the lunar surface as a primary objective for the coming decade. Speculation about resources in space – from platinum-group metals to water ice – has permeated space-focused media, culminating with the establishment of a price for water delivered in …
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Investigation Of Material Properties Of Sintered Black Point-1 Lunar Regolith Simulant
… has opened up opportunities for future plans for lunar bases and settlements. However, the cost of using resources outside the lunar environment can inhibit this form of expansion, therefore the need for In Situ Resource Utilization (ISRU). The aim of this research was to investigate the possible …
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Production of helium and neon in the lunar regolith by solar cosmic ray protons
… depth for the top 1 to 15 centimeters of a model lunar regolith with Na, Mg, Al, and Si contents of 1. mass percent each. Applying these results to the known average chemical composition of the lunar soils, total production rates were computed for the Apollo 11, 12, 14 and 15 soils. The production …
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Scaled experimental study on excavation of lunar regolith with rakes/rippers and flat blade
… study focuses on loosening and moving of the lunar regolith by a ripper (or rake) and a wide blade with consideration of gravel content. After characterizing the lunar regolith and two of its simulants (JSC-1A and FJS-1), the relationship between the excavation energy and different conditions, …
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Manufacture and characterization of sintered icy lunar regolith simulants, and implications for space resources and planetary science, The
… life within them. Prospecting is needed to prove lunar water ice reserves, which will be followed by excavating icy lunar regolith, and extracting the volatiles from within it. Before any of these activities can be performed, icy lunar regolith must be characterized and understood, beginning with …
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Characterization of liquid crystal on silicon SLMs for in-situ Raman imaging for quality control of processed lunar regolith
… gathered during the mission. The use of lunar regolith as a construction and shielding material is particularly important in this context. Sintering or 3D printing of the material is one option. As a contribution to in-situ quality control, this research proposes to realize spatial …
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Ultrasonic velocity measurements of simulated lunar regolith with variable ice content: a laboratory and modeling investigation with implications for geophysical lunar resource exploration
… of water ice within some craters near the lunar poles, but little is known about the distribution and concentration of ice throughout the lunar soil, or regolith. An upcoming NASA mission plans to directly sample the upper meter of potentially ice-bearing regolith in the Moon’s south pole …
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Review of the mechanical properties of lunar soils
This thesis summarizes the history of lunar soil exploration through the Surveyor and Apollo programs, 1966 - 1972. Our current knowledge of the physical and engineering properties of the lunar regolith is derived mainly from measurements made on bulk and core samples returned to earth, as well as …
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Aurora: Lunar Surface Power Plant
One of NASA’s Lunar Infrastructure goals is to develop an incremental lunar power generation and distribution system that is evolvable to support continuous robotic/human operation and is capable of scaling to global power utilization and industrial power levels. Achieving this mission will require …
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Decoding and Optimizing Magnesium Phosphate Binders for Additive Construction Applications
… in 3DcP applications. Furthermore, Martian and Lunar regolith simulants can be mixed with the MPC composites to create mortars as a possible extraterrestrial 3DP <em>in-situ</em> construction material mainly to support the NASA habitation exploration mission.
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Molten Regolith Electrolysis reactor modeling and optimization of in-situ resource utilization systems
… In particular, producing oxygen from lunar regolith holds great promise for maintaining life support systems and enabling orbital refueling of chemical propulsion systems to reduce launch vehicle mass. Unfortunately, significant uncertainty as to the mass, power, and performance of …
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A study of nitrogen isotopic systematics in lunar soils and breccias
A variety of lunar soils (bulk soils, grain size fractions and mineral separates) and regolith breccias are studied for nitrogen abundance and isotopic composition. in order to investigate the isotopic variation in the lunar regolith and to constrain the origin of the nitrogen. The lunar soils and …
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Influences of Reaction Parameters on the Product of a Geothermite Reaction: A Multi-Component Oxidation-Reduction Reaction Study
… occur between two particle size distributions of lunar regolith simulant. Regolith simulant is a naturally occurring mixture of minerals and glass mined from a volcanic ash deposit. The chemical composition of the simulant is similar to actual lunar regolith found on the Moon. The product of the …
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Modeling, Design, and Assembly of Spring Tires
… interest in the Moon and the need for autonomous lunar rovers that drive longer distances and operate over extended durations, designing efficient and robust mobility systems is paramount. Created by NASA Glenn Research Center, the spring tire is a compliant airless tire engineered for planetary …
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Dynamic Analysis of CubeSat Impact on Lunar Surface
… as a payload of the Intuitive Machines Nova-C lunar lander. The CubeSat’s purpose is to record the lunar landing from a 3rd person view. Unlike other CubeSats, EagleCam is designed to impact the lunar surface and there is no history to build off of. Specifically, EagleCam will need to survive a …
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Responsive Space Environments: New Paradigms in Blending Virtual and Physical Exploration through Human-Robot Operations
… that underwent rigorous testing on the SSERVI Lunar regolith testbed at NASA Ames Research Center. This software is designed to operate within an isolated Docker container and was integrated to operate a repurposed commercial imaging payload within Lunar Outpost’s Mobile Autonomous Prospecting …
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Development of new processes for ISRU (In Situ Resource Utilization) and ISFR (In Situ Fabrication and Repair) applications on Moon and Mars
… in-situ fabrication of construction materials in Lunar and Martian environments is described. The mixtures to be reacted by SHS are prepared taking advantage of the composition of lunar and martian regoliths. Lunar regolith simulant JSC-1A, Martian regolith JSC-1A, and Mojave martian regolith …
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Developments in large scale discrete element simulations with polyhedral particles
… viability of using polyhedral DEM approach for lunar regolith simulations, and the second study demonstrates the relative simplicity and reliability to capture the complex triaxial soil behavior with DEM. A new simulation method, iDEM, is then presented, which shows phenomenal speed-up by almost …
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