Results 21 to 30 of about 130,537 (229)

A Spectrophotometric Evaluation of Lunar Catharina Crater Using Support Vector Regression Analysis for FeO and TiO₂ Estimations [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Support Vector Regression (SVR) is an extended version of the Support Vector Machine (SVM) algorithm. It is an effective machine learning tool for handling huge complex data sets. SVR algorithm is introduced to the existing lunar FeO and TiO2 concentrate
A. K. Padinharethodi, A. K. Padinharethodi, S. Kumar, Advaith C A   +3 more
doaj   +1 more source

Post‐flight assessment of the OSIRIS‐REx Sample Return Capsule (SRC) for organic and other potential contaminants

Meteoritics &Planetary Science, EarlyView.
Abstract Regolith samples from the carbonaceous asteroid Bennu were stowed and delivered to Earth in the OSIRIS‐REx spacecraft's Sample Return Capsule (SRC). We applied multiple analytical techniques to study the components of the post‐flight SRC, with a focus on assessing the conditions and any contaminants to which the Bennu samples were exposed ...
Scott A. Sandford, Jason P. Dworkin, Kevin Righter, Feargus A. J. Abernethy, Romain Alosius, José C. Aponte, James Ball, Eve L. Berger, Denise K. Buckner, Henner Busemann, Simon J. Clemett, George Cody, Jamie Elsila, Dionysis I. Foustoukos, Ian A. Franchi, Daniel P. Glavin, Monica M. Grady, Heather V. Graham, Philipp R. Heck, Amy E. Hofmann, Yongsong Huang, Bumsoo Kim, Daniela Krietsch, Nicole G. Lunning, Colin Maden, Hannah L. McLain, Angel Mojarro, Michel Nuevo, Philippe Schmitt‐Kopplin, Ewerton Santos, Maria Schönbächler, Christopher J. Snead, Kathie L. Thomas‐Keprta, Alexander B. Verchovsky, Harold C. Connolly Jr., Dante S. Lauretta   +35 more
wiley   +1 more source

Use of orbiting reflectors to decrease the technological challenges of surviving the lunar night [PDF]

, 2011
In this paper the feasibility of using lunar reflectors to decrease the technological challenges of surviving the lunar night is investigated. This is achieved by attempting to find orbits in the two-body problem where the argument of periapsis is ...
Bewick, Russell, Sanchez Cuartielles, Joan-Pau, McInnes, Colin   +2 more
core   +3 more sources

Petrogenesis of Lunar Farside Highland Lithologies: Implications for Lunar Crust Formation

The Astrophysical Journal
The lunar soil samples collected by the Chang’e-6 (CE-6) mission provide a unique opportunity to study the composition and formation of the lunar crust on the farside of the Moon.
Jiaqi Zheng, Qi He, Zaicong Wang, Jun Huang, J. F. Pernet-Fisher, Yiheng Li, Xu Chen, Keqing Zong, Ioannis Baziotis, Long Xiao, Zhenbing She   +10 more
doaj   +1 more source

Horizons and opportunities in lunar sample science [PDF]

, 1985
The lunar sample research program was especially productive, but by no means have all the important answers been determined; continued study of lunar samples will further illuminate the shadows of our knowledge about the solar system.by Lunar and ...
Lunar and Planetary Sample Team
core  

Michael B McElroy (1939–2026): He Saw the Earth as a Planet

Perspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract Michael B. McElroy, the Gilbert Butler Professor of Environmental Studies at Harvard University and a towering figure in atmospheric science whose research spanned from the atmospheres of Mars and Venus to the policy challenges of climate change, died January 8 from cancer. He was 86.
Yuk L. Yung
wiley   +1 more source

Development and characterization of a regional lunar soil simulant for emirates lunar missions

International Journal of Mining Science and Technology
Lunar soil simulants (LSS) have been pivotal in the success of past and current lunar missions. They have enhanced the design of lander and rover wheels through interaction studies on the lunar testbed under simulated environmental conditions.
Bo Peng, Prabu Thannasi, Waleed El-Sekelly, Tarek Abdoun, Kemal Celik   +4 more
doaj   +1 more source

The Benefits of High Resolution Multispectral TIR Data and Its Impending Loss by NASA After Four Decades

Perspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract NASA has led multispectral (≥3 wavelength bands) thermal infrared (TIR) sensor development from the earliest days of the agency. These data are critical in addressing a wide range of scientific questions and administration priories by measuring both temperature (for wildfire and volcanic eruption monitoring, agricultural plant stress, and ...
M. S. Ramsey, K. Cawse‐Nicholson, J. B. Fisher, S. J. Hook, G. C. Hulley, C. M. Lee, M. Silvestri, J. O. Thompson, I. M. Watson   +8 more
wiley   +1 more source

Lunar Volatile and Mineralogy Mapping Orbiter (VMMO): Viable Science from Lunar CubeSats [PDF]

, 2021
The Volatile and Mineralogy Mapping Orbiter (VMMO) is a low-cost 12U CubeSat concept that was originally selected by the European Space Agency (ESA) as one of the two winners of the 2018 SysNova Challenge.
Walker, Roger, Bridges, Chris, Corriveau, Michel, Gao, Yang, Kruzelecky, Roman, Gameiro, Mauro, Cloutis, Edward, Vennekens, Johan, St-Amour, Amélie, Silva, Nuno, Fabris, Andrea Lucca, Murzionak, Piotr, Baresi, Nicola, Rowe, Samantha, Sinclair, Ian   +14 more
core   +1 more source

Experimental Investigation of Soil Adsorption Effects on Water Migration in Simulated Lunar Conditions

The Planetary Science Journal
Adsorption is a key mechanism governing water vapor diffusion in lunar regolith. To investigate this process, we conducted experiments under simulated lunar conditions—Knudsen diffusion conditions—using three soil types with varying water vapor ...
Yasheng Li, Zhi Wen, Wei Ma, Mingli Zhang, Chengdan He   +4 more
doaj   +1 more source