Results 41 to 50 of about 22,302 (295)
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
Investigating the Geotechnical Properties of the Lunar South Pole with NASA VIPER’s Mobility System
The Planetary Science JournalThe NASA Volatiles Investigating Polar Exploration Rover (VIPER) is capable of assessing the geotechnical properties of the lunar south pole’s terrain, specifically as they pertain to terramechanics or the wheel–terrain interaction, combining the rover’s
Erin Rezich +10 more
doaj +1 more source
Sensing Lunar Dust Density Using Radio Science Signals of Opportunity
Remote SensingPrevious lunar missions, such as Surveyor, Apollo, and the Lunar Atmosphere and Dust Environment Explorer (LADEE), have played a pivotal role in advancing our understanding of the lunar exosphere’s dynamics and its relationship with solar wind flux.
Kamal Oudrhiri +2 more
doaj +1 more source
Review and Revision of the Lunar Cratering Chronology—Lunar Timescale Part 2
The Planetary Science Journal, 2023 Times and rates of planetary surface-modifying processes are crucial for the sequence and correlation of events on planetary bodies. For most planetary surfaces, superposition principles and crater densities are commonly used methods to collect relative ...
Stephanie C. Werner +2 more
doaj +1 more source
Advanced Energy Materials, EarlyView.Metal‐halide perovskite solar cells offer high‐efficiency power for orbital missions but suffer from permanent proton‐induced degradation. This work identifies non‐ionizing energy loss (NIEL) as the primary driver of irreversible failure, inducing atomic displacements and microcracks in the high‐fluence regime. Through energy‐tuned mapping and scalable
Jangwon Byun +10 more
wiley +1 more source
Lunar Surface Magnetometer familiarization manual. [PDF]
, 1968 The two major purposes of this document are: to provide an introduction in depth to the design and design rationale of the Lunar Surface Magnetometer (LSM); and to define certain support requirements relating to instrument transportation, storage ...
core
Remote Sensing, 2023 Microwave radiometer (MRM) is one of the important payloads on the Chang’e-2 (CE-2) Lunar satellite. In the Chang’e satellite’s observation of the microwave radiation brightness temperature (TB) on the lunar surface, there are some “cold spots” of ...
Lianghai Wu +4 more
doaj +1 more source
The Anatomical Record, EarlyView.Abstract New data on the equine aortic valve obtained using advanced techniques is especially important given the greater availability of animal models for translational research. Here we characterized the morphological and morphometric aspects of the equine aortic valve from 60 healthy hearts collected at equine abattoirs.
Vitor Pires Pereira +3 more
wiley +1 more source
Evidence for negative charging of the lunar surface in shadow
, 2002 Observations of electron distributions above the shadowed surface of the Moon show energy-dependent loss cones which indicate reflection by both magnetic and electric fields.
Binder, A. B. +5 more
core +1 more source
Dynamic Secondary Illumination in Permanent Shadows within Artemis III Candidate Landing Regions
The Planetary Science JournalInvestigations that can be conducted at the Artemis III candidate landing regions will benefit from the knowledge of the thermal environment within permanently shadowed regions (PSRs). Within PSRs, secondary illumination controls the surface temperature,
Prasun Mahanti +7 more
doaj +1 more source