Results 61 to 70 of about 22,302 (295)

Estimating the critical angle of top near‐surface layers on the Moon

open access: yesNear Surface Geophysics, EarlyView.
Abstract Near‐surface characterization of the lunar subsurface is essential for future exploration and infrastructure development, particularly for the construction of underground habitats that provide protection against radiation and micrometeorites. However, conventional seismic approaches for estimating subsurface properties typically rely on prior ...
Nelson Ricardo Coelho Flores Zuniga   +1 more
wiley   +1 more source

Lunar Radiometric Measurement Based on Observing China Chang’E-3 Lander with VLBI—First Insight

open access: yesAdvances in Astronomy, 2019
China Chang’E-3 performed soft landing at the plains of Sinus Iridum on lunar surface on December 14th 2013 successfully; it opened a new window for observing lunar surface with radiometric tracking which many lunar scientific researchers always pursue ...
SongTao Han   +6 more
doaj   +1 more source

Dietary Protein Reduction During Isocaloric Conditions Reduces Body Weight in Men With Overweight or Obesity

open access: yesObesity, EarlyView.
Protein restriction, while meeting minimum requirements, induced weight loss and increased FGF21 in men with obesity under isocaloric conditions, without caloric restriction. ABSTRACT Objective Dietary protein reduction increases plasma fibroblast growth factor 21 (FGF21) and energy requirements in lean men under eucaloric conditions.
Aslak E. Lyster   +10 more
wiley   +1 more source

Extreme Shock Pressures: Recovery and Detection of Microfossils. [PDF]

open access: yes, 2014
In this thesis an experimental method is utilised to test the viability and suitability of algal microfossils in the context of simulating the shock phase of lithopanspermia.
Yolland, Lawrence
core  

Interplanetary frontiers: terraforming from an invasion science perspective

open access: yesOikos, EarlyView.
The pursuit of a multi‐planetary existence represents one of humanity's greatest frontiers. If applied justly, it offers an opportunity to extend its civilization's lifespan amid escalating sustainability crises on Earth. One approach increasingly gaining traction is terraforming, a hitherto theoretical ecological and evolutionary experiment revolving ...
Teun Everts   +2 more
wiley   +1 more source

The Lunar Surface Gravimeter as a Lunar Seismograph [PDF]

open access: yes, 2008
Introduction: The primary objective for the Lunar Surface Gravimeter (LSG) on Apollo 17 was to search for gravitational waves, but it failed in detecting them [1]. When the instrument was deployed on the Moon, the sensor beam could not be balanced in the proper equilibrium position. Consequently, the LSG was not able to function as originally designed.
Kawamura, T.   +5 more
openaire  

Do cultural taboos regulate hunting in transitioning Indigenous communities? The case of the Idu Mishmi of Northeast India

open access: yesPeople and Nature, EarlyView.
Abstract There is rising recognition of resource‐use rights of Indigenous Peoples and Local Communities (IPLCs) within wildlife conservation. Historically, sociocultural institutions ensured wildlife sustainability in many IPLC areas. However, the future viability of such institutions is uncertain as IPLCs change in response to external pressures and ...
Sahil Nijhawan   +5 more
wiley   +1 more source

The Evolution of Autonomous Systems for Planetary Cave Exploration: A Review

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT The exploration of Subsurface Access Points (SAPs), such as lava tubes on the Moon and Mars, has gained significant interest due to their potential as stable environments shielded from surface radiation and temperature extremes. These sites are considered high‐value targets for detecting water and signs of ancient life, and assessing their ...
Sarah Swinton   +4 more
wiley   +1 more source

From Flybys to Sample Return: A Review of Space Probes and Robotic Sampling Technologies for Small Bodies

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang   +3 more
wiley   +1 more source

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

open access: yesThe 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   +4 more
doaj   +1 more source

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