Results 81 to 90 of about 8,954 (265)

Collection and In Situ Analyses of Regolith Samples by the Mars 2020 Rover: Implications for Their Formation and Alteration History

Journal of Geophysical Research: Planets, Volume 130, Issue 2, February 2025.
Abstract The Perseverance rover has sampled mm‐size lithic fragments containing olivine likely from at least two source regions from the surface of an inactive megaripple surface, and fine‐grained material from the surface and to a depth of ∼4–6 cm. Some of the mm‐size grains lack a coherent diffraction pattern measured by PIXL, consistent with the ...
E. M. Hausrath, R. Sullivan, Y. Goreva, M. P. Zorzano, A. Vaughan, A. Cousin, S. Siljeström, S. Sharma, A. O. Shumway, T. Kizovski, S. J. VanBommel, M. Tice, A. Knight, G. Martinez, A. Vicente‐Retortillo, L. Mandon, C. T. Adcock, J. M. Madariaga, I. Población, J. R. Johnson, J. Lasue, O. Gasnault, N. Randazzo, E. L. Cardarelli, R. Kronyak, A. Bechtold, G. Paar, A. Udry, O. Forni, C. C. Bedford, N. A. Carman, J. F. Bell III, K. Benison, T. Bosak, A. Brown, A. Broz, F. Calef, B. C. Clark, E. Cloutis, A. D. Czaja, T. Fornaro, T. Fouchet, M. Golombek, F. Gómez, C. D. K. Herd, K. Herkenhoff, R. S. Jakubek, L. Jandura, J. Martinez‐Frias, L. E. Mayhew, P.‐Y. Meslin, C. E. Newman, J. I. Núñez, F. Poulet, C. Royer, P. Russell, M. A. Sephton, S. K. Sharma, D. Shuster, J. I. Simon, I. Tirona, R. C. Wiens, B. P. Weiss, A. J. Williams, K. Williford, Z. U. Wolf, the Regolith Working Group   +66 more
wiley   +1 more source

Soil experiment [PDF]

An experimental procedure was devised to investigate the effects of the lunar environment on the physical properties of simulated lunar soil. The test equipment and materials used consisted of a vacuum chamber, direct shear tester, static penetrometer ...
Butler, Todd, Cline, Charles, Hutcheson, Linton, Scruggs, Steve, Smith, Mike, Zakhia, Nadim   +5 more
core   +1 more source

Near Room Temperature Production of Segregated Network Composites of Carbon Nanotubes and Regolith as Multifunctional, Extra‐Terrestrial Building Materials

Small, Volume 20, Issue 38, September 19, 2024.
Future space missions will need to fabricate building materials on the moon or Mars from local soil or regolith. Here it is shown that carbon nanotubes can be used as a binder to convert fine sand as well as lunar and Martian regolith simulants into solid “bricks” with excellent mechanical properties.
James Garcia, Eoin Caffrey, Luke Doolan, Dominik V. Horvath, Tian Carey, Cian Gabbett, Jonathan N. Coleman   +6 more
wiley   +1 more source

ISRU Soil Mechanics Vacuum Facility: Soil Bin Preparation and Simulant Strength Characterization [PDF]

, 2012
Testing in relevant environments is key to exploration mission hardware development. This is true on both the component level (in early development) and system level (in late development stages).
Kleinhenz, Julie, Wilkinson, Allen
core   +1 more source

Additive manufacturing of physical assets by using ceramic multicomponent extra-terrestrial materials [PDF]

, 2016
Powder Bed Fusion (PBF) is a range of advanced manufacturing technologies that can fabricate three-dimensional assets directly from CAD data, on a successive layer-by-layer strategy by using thermal energy, typically from a laser source, to irradiate and
Friel, RJ, Goulas, A, Harris, RA
core   +1 more source

The reactivity of experimentally reduced lunar regolith simulants: Health implications for future crewed missions to the lunar surface

Meteoritics &Planetary Science, Volume 59, Issue 9, Page 2487-2504, September 2024.
Abstract Crewed missions to the Moon may resume as early as 2026 with NASA's Artemis III mission, and lunar dust exposure/inhalation is a potentially serious health hazard that requires detailed study. Current dust exposure limits are based on Apollo‐era samples that spent decades in long‐term storage on Earth; their diminished reactivity may lead to ...
Donald A. Hendrix, Tristan Catalano, Hanna Nekvasil, Timothy D. Glotch, Carey Legett IV, Joel A. Hurowitz   +5 more
wiley   +1 more source

Calibration of discrete element method simulation parameters for lunar rover using simulated lunar soil

Journal of Physics: Conference Series
Abstract To ensure the accuracy and scientific validity of simulation results in discrete element simulation of simulated lunar soil and sieve wheels for lunar surface probes, a method for calibrating the simulation parameters of an analog lunar soil simulation using a box-Behnken experimental design is proposed.
Liangliang Zhao, Hua Zhang, Jia Ma, Yupei Du, Zhenyu Hu, Rui Zhang, Guifen Zhou   +6 more
openaire   +1 more source

Glass fiber processing for the Moon/Mars program: Center director's discretionary fund final report [PDF]

Glass fiber has been produced from two lunar soil simulants. These two materials simulate lunar mare soil and lunar highland soil compositions, respectively.
Curreri, P., Ethridge, E., Tucker, D. S.
core   +1 more source

Estimation of energy and material use of sintering-based construction for a lunar outpost - with the example of SinterHab module design [PDF]

, 2015
In this paper, we would revisit the usability of microwave for lunar regolith sintering through an in-depth experiment, and examine the minimum materials and energy required for sintering based on the SinterHab design.
Anand, M., Lim, S., Rousek, T.
core  

Spirulina supported plant growth in regolith simulants and elevated levels of CO2

Frontiers in Space Technologies
IntroductionA key element for sustainable off-world habitation is the ability to grow food through in-situ resource utilization (ISRU). Growth substrates are required to overcome the challenges of ISRU in the space environment, including the use of ...
Kristen A. Miller, Dennis Terry Trevino, Gilbert Cauthorn   +2 more
doaj   +1 more source