Results 11 to 20 of about 197 (113)

Multi-criteria GIS analysis of the topography of the Moon and better solutions for potential landing

Open Astronomy, 2019
During the past twenty years, the need to reach theMoon by the private space missions has been growing. Some of the private missions are supported by Google Lunar X-prize and Space-X. In the period between 2020 and 2050 private companies will be planning
Valjarević Aleksandar, Živković Dragica, Gadžić Nebojša, Tomanović Dušan, Grbić Mirko   +4 more
doaj   +1 more source

Next-Generation Geodesy at the Lunar South Pole: An Opportunity Enabled by the Artemis III Crew

, 2020
2 pages, 1 figure, A white paper submitted to the Artemis III Science Definition Team of NASA's Science Mission ...
Viswanathan, Vishnu, Mazarico, Erwan, Merkowitz, Stephen, Sun, Xiaoli, Eubanks, Thomas Marshall, Smith, David Edmund   +5 more
openaire   +2 more sources

Detection of seismic events on Mars: a lunar perspective

Earth and Planetary Physics, 2019
The interior structures of planets are attracting more and more detailed attention; these studies could be of great value in improving our understanding of the early evolution of Earth.
WeiJia Sun, Liang Zhao, Yong Wei, Li-Yun Fu   +3 more
doaj   +1 more source

LROC-derived 1 m Resolution Digital Elevation Model and Regolith Temperature Simulation of Banting Crater

The Astronomical Journal
The regolith temperature of the Moon is strongly influenced by direct solar radiation and multiple-scattered thermal radiation from the surrounding terrains.
Zhen Yang, Zhen Zhong, Huaiyu He, Jianguo Yan, Lidan Zhang   +4 more
doaj   +1 more source

Crustal Density Differences Along Mars' Dichotomy Boundary From Gravity and Topography

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Seismic data for Mars has provided constraints on the thickness of its crust, but its density and how much it varies spatially, especially across the hemispherical dichotomy, is still undetermined. We apply a novel constraint in the analysis of spacecraft tracking data to determine Mars' gravity field that allows for the determination of the ...
Sander Goossens, Terence J. Sabaka
wiley   +1 more source

Global Megaregolith Structure on the Moon from Gravity and Topography Data

The Astrophysical Journal
The megaregolith is a thick, highly fractured layer and plays a fundamental role in the Moon’s geological and thermal evolution. However, existing estimates of its thickness remain spatially discontinuous and lack global consistency.
Wensong Zhang, Qingyun Deng, Denggao Qiu, Yong Wang, Wei Zheng, Jianguo Yan, Fengqi Zhang, Fei Li   +7 more
doaj   +1 more source

Locating Moonquakes With Single‐Station Seismology

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Renewed international interest in lunar seismometer deployments requires robust single‐station location approach for the highly scattering Moon's crust. We present an event‐location strategy using major lunar event types recorded by the Apollo seismic network. Frequency‐dependent polarization analysis provides P‐wave back‐azimuth and incidence,
Doyeon Kim, Jung‐Hun Song, Nicholas C. Schmerr   +2 more
wiley   +1 more source

Updated Interior Structure of Callisto From a Reanalysis of Galileo Data

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract The internal structure of Callisto has been a long‐standing question since the Galileo mission. Previous analyses suggested a largely undifferentiated interior. We present an updated interior structure for Callisto derived from a reanalysis of Galileo's Doppler tracking data using new signal processing techniques.
G. Cascioli, F. Petricca, E. Mazarico, D. Buccino, C. Cochrane, J. Castillo‐Rogez   +5 more
wiley   +1 more source

Detecting an Ocean Inside Callisto With Geodetic Measurements From Europa Clipper and Juice

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract Determining whether Callisto hosts a subsurface ocean, and the implications for material and energy transport through its hydrosphere, is of high interest to NASA's Europa Clipper and ESA's Juice missions. A recent reanalysis of Galileo magnetometer data strengthens the ocean hypothesis, but definitive confirmation awaits new measurements.
Flavio Petricca, Gael Cascioli, Erwan Mazarico   +2 more
wiley   +1 more source

The optical challenge of two-colour lunar laser ranging at MéO station

Results in Optics
This article describes recent optical developments for the Nd:YAG laser at the MéO station, which regularly carries out Lunar/Satellite Laser Ranging (LLR/SLR) observations for fundamental physics and space geodesy.
G. Martinot-Lagarde, H. Mariey, N. Maurice, J. Scariot, H. Viot   +4 more
doaj   +1 more source