Results 31 to 40 of about 2,545,324 (298)

Regions of interest (ROI) for future exploration missions to the lunar South Pole

open access: yes, 2020
The last decades have been marked by increasing evidence for the presence of near-surface volatiles at the lunar poles. Enhancement in hydrogen near both poles, UV and VNIR albedo anomalies, high CPR in remotely sensed radar data have all been ...
J. Flahaut   +8 more
semanticscholar   +1 more source

Numerical modeling of the formation of Shackleton crater at the lunar south pole

open access: yesIcarus (New York, N.Y. 1962), 2020
The lunar south pole, on the rim of Shackleton crater, is the target for the next human landing on the Moon. We use numerical modeling to investigate the formation of that crater and the distribution of ejecta around the south pole. We find that a 1.5 km
Samuel Halim   +11 more
semanticscholar   +1 more source

Development and Prospect of Chinese Lunar Relay Communication Satellite

open access: yesSpace: Science & Technology, 2021
Relay communication satellites play a very important role on the lunar far side and pole areas exploration missions. Queqiao relay communication satellite was developed to provide relay communication support for the lander and the rover of Chang’e-4 ...
Lihua Zhang
doaj   +1 more source

Why the lunar South Pole-Aitken Basin is not a mascon

open access: yes, 2020
Lunar mascon basins exist for only a range of observed diameters. We modeled the full formation of South-Pole Aitken basin using a sequential two-code (hydrocode and Finite Element Model) approach to understand why this range does not extend to the ...
A. Trowbridge   +3 more
semanticscholar   +1 more source

Lunar Flashlight: Illuminating the Lunar South Pole

open access: yesIEEE Aerospace and Electronic Systems Magazine, 2020
Water ice and other volatile compounds may be present on the Moon's surface within permanently shadowed regions (PSRs) near the lunar poles. Understanding the composition, quantity, distribution, and form of water and other volatiles associated with ...
P. Hayne   +6 more
semanticscholar   +1 more source

Characteristics Of Saddang River Sand, Pinrang Regency, South Sulawesi, Indonesia Based On Grain Gradation, Mud Content And Specific Gravity

open access: yesJGEET: Journal of Geoscience, Engineering, Environment and Technology
The research aims to determine the characteristics of sand grain gradation, mud content and specific gravity of Saddang River sand. Saddang river sand is the main source of sand used in construction activities in South Sulawesi and West Sulawesi.
Arsyad   +9 more
doaj   +1 more source

Atacama Cosmology Telescope, South Pole Telescope, and Chaotic Inflation.

open access: yesPhysical Review Letters
We show that the simplest generalization of the chaotic inflation model 1/2m^{2}ϕ^{2} with nonminimal coupling to gravity (1+ϕ)R provides a good match to the results of the latest data release of the Atacama Cosmology Telescope and South Pole Telescope ...
R. Kallosh, Andrei Linde, Diederik Roest
semanticscholar   +1 more source

EFFECT OF MAGNETIC FIELD ON THE GROWTH, MULTIPLICATION AND CONCENTRATION OF THE VOLATILE OIL OF ROSEMARY OFFICINALIS IN VITRO

open access: yesThe Iraqi Journal of Agricultural science, 2019
This experiment was conducted at the plant tissue culture laboratory – Dept. of Horti.- Coll. of Agricultural Engineering Sciences – Univ. of Baghdad, in order to study the effect of magnetic field in the propagation and production of volatile oil ...
Abdul Husain & Jawad
doaj   +1 more source

Geological Characteristics of Von Kármán Crater, Northwestern South Pole‐Aitken Basin: Chang'E‐4 Landing Site Region

open access: yesJournal of Geophysical Research - Planets, 2018
Von Kármán crater (diameter = ~186 km), lying in the northwestern South Pole‐Aitken (SPA) basin, was formed in the pre‐Nectarian. The Von Kármán crater floor was subsequently flooded with one or several generations of mare basalts during the Imbrian ...
Jun Huang   +7 more
semanticscholar   +1 more source

Ordovician–Silurian true polar wander as a mechanism for severe glaciation and mass extinction

open access: yesNature Communications, 2022
Palaeomagnetic data from South China and compiled reliable palaeopoles from 4 other continents reveals a ~50˚ true polar wander (TPW) event occurring 450–440 million years ago.
Xianqing Jing   +5 more
doaj   +1 more source

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