Results 71 to 80 of about 4,053,390 (205)

Impact Craters Reveal a Deeper Rock‐Poor Regolith in the Lunar Highlands

Geophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract The only measurements of the highlands regolith occurred at the Apollo 14 and 16 landing sites, finding 10–15 m thick regolith; however, we show that the Apollo landing sites are anomalous due to their proximity to rare, highlands rocky craters and because they landed atop basin ejecta. Through observations of rocky crater populations, we show
M. A. Chertok, E. S. Costello, P. G. Lucey, S. M. Ireland, C. M. Elder   +4 more
wiley   +1 more source

Apollo Lunar Surfce Drill bore stem design [PDF]

, 1972
Martin Marietta Corporation has submitted the Bore Stem Structural Analysis Report (enclosure 1) for NASA's review and approval. Since redesigning the bore stem joint was your recommendation, we are requesting your office support us in the review and ...
Gerke, P. Donald
core  

Lunar heat flow from the observation of Chinese Chang’E 2 and LRO diviner radiometers

AIP Advances
Lunar heat flow within 75°N to 65°S and 60°W to 100°E regions is retrieved from microwave brightness temperature observed by Chang’E-2 (CE-2) Lunar Microwave Radiometers and infrared brightness temperature observed by Lunar Reconnaissance Orbiter (LRO ...
Dan Zhang, Cui Li
doaj   +1 more source

The Cog‐Aging: a 15‐year cohort study of cognition in Brazilian older adults

Alzheimer's &Dementia, Volume 22, Issue 9, September 2026.
Abstract BACKGROUND Prevalence of dementia is higher in low‐ and middle‐income countries (LMICs). However, longitudinal studies characterizing cognitive decline and its clinical and epidemiological predictors remain scarce in Brazil. METHODS Participants were enrolled from 2011 to 2025 and followed through May 2026.
Gabriela Tomé Oliveira Engelmann, Joice Coutinho de Alvarenga, Giovanna Correia Pereira Moro, Ivonne Carolina Bolaños Burgos, Mariana Figueiredo Miranda, Millena Figueiredo Miranda, Aline Siqueira de Souza, Marcelle Ferreira Saldanha, Erika Oliveira Hansen, Natalia Silva Dias, Fabiana Carla Matos da Cunha Cintra, Bruna Fulgêncio Dias, Anna Luiza da Silva Souza, Andréa Teixeira Carvalho, Pamela V. Martino‐Adami, Marco Túlio Gualberto Cintra, Ludimila Labanca, Igor Nunes Lanna, Rafaela Teixeira de Ávila, Jonas Jardim de Paula, Luciana Costa‐Silva, Daniela Valadão Freitas Rosa, Débora Marques de Miranda, Marco Aurélio Romano‐Silva, Luiz Armando Cunha de Marco, Alfredo Ramírez, Bernardo de Mattos Viana, Maria Aparecida Camargos Bicalho   +27 more
wiley   +1 more source

The Flux of Large Impacts on the Moon Enhanced near the Beginning of the Copernican Period

The Planetary Science Journal
The size–frequency distribution (SFD) of lunar impactors was believed to be time independent for the last 3.5 billion years (Gyr). Here, I use linear and nonlinear topographic diffusion models to determine the degradation states (the integral of ...
Minggang Xie
doaj   +1 more source

A Low‐Power Radioisotope XRF Spectrometer for Detection of Light Elements on Planetary Missions

X-Ray Spectrometry, Volume 55, Issue 5, Page 721-729, September/October 2026.
ABSTRACT Current X‐ray spectrometers for in situ geochemical analysis on planetary missions typically rely either on X‐ray tubes, which demand electrical power and add mass and thermal complexity, or on alpha particle X‐ray spectrometers (APXS) that use rare 244 Cm sources, and come with severe concerns on radiation safety and isotope availability.
Leandro Silveri, Artem Knyazev, Hashem Alaidaros, Maryam Manzoor Amanullah, Zach Ioannou, Tengiz Ibrayev, Danish Khan, Sara Leardini, Laura Manenti, Simi Maria Emilia Mangani, Safa Naseem, Sandhya Sharma, Sara Trevisan, Alia Zino, Francesco Arneodo   +14 more
wiley   +1 more source

Lunar Mare Lava Flow Dynamics and Emplacement: Predictions of Non-Newtonian Flow Dynamics, Syn- and Post-emplacement Cooling and Volatile Release Patterns, and Vertical and Lateral Flow Structure Development

The Planetary Science Journal
We apply basic principles of magma ascent from deep source regions and its eruption into a low-gravity vacuum environment to develop a theoretical treatment of the fluid dynamics and thermodynamics of mare basalt lava flow emplacement and evolution on ...
Lionel Wilson, James W. Head
doaj   +1 more source

Personalization and Fortification of In‐Space Manufactured Emulsified Beverages for Long‐Term Space Travel

Comprehensive Reviews in Food Science and Food Safety, Volume 25, Issue 5, September 2026.
ABSTRACT The current trend of individualized food items (nutrient content and flavor) can be particularly valuable to support people's health and well‐being in isolated environments where access to fresh foods and diverse nutrition is difficult. At the same time, bioactive compounds and micronutrients can be employed to countermeasure any health ...
Svenja Schmidt, Ian Fisk, Ni Yang, Maria Saarela, Volker Hessel   +4 more
wiley   +1 more source

Does the Lunar Cycle Affect Birth and Deaths? [PDF]

There is a commonplace notion that full moons affect natality and mortality. To test this theory, we obtain daily births and deaths data from Australia, covering all 10,592 days from 1 January 1975 to 31 December 2003.
Andrew Leigh, Joshua S. Gans
core  

Morphometric Analysis of the Jingpo Lake Volcanic Field: A Terrestrial Analog for Lunar Lava Flow

Remote Sensing
The lack of high-precision imaging data for lunar volcanic regions currently hinders the detailed characterization of lava tube systems and their associated fine-scale geomorphology.
Haiting Yang, Teng Hu, Zhizhong Kang, Liang Gao, Lang Qin, Cheng Peng, Chenming Ye, Haoxiang Hu   +7 more
doaj   +1 more source