Results 21 to 30 of about 197 (113)

On the Detection of Low‐Frequency Planetary Radio Emission With an Orbiting Interferometer

Radio Science, Volume 61, Issue 6, June 2026.
Abstract The magnetized planets of the outer Solar System produce kilometric radio emissions at very low frequencies (<1 ${< } 1\,$MHz). They reveal the planetary magnetic dynamics and their interaction with the solar wind. Those radio emissions can also serve as a proxy for interplanetary space weather monitoring.
E. Rouillé, B. Cecconi, B. Segret, J. N. Girard, A. Loh   +4 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

Advancing Heliophysics and Space Weather Modeling Through Open Science

Space Weather, Volume 24, Issue 6, June 2026.
Abstract We present a community‐wide effort to develop a strategy and action plan to advance heliophysics and space weather modeling through open science. While open science has the potential to enhance the quality and pace of scientific discovery, its application to scientific modeling requires more careful consideration regarding open data and open ...
C. Corti, M. M. Kuznetsova, M. A. Reiss, J. Yue, J. Karpen, C. N. Arge, F. Bacchini, C. Bard, S. Bruinsma, R. M. Caplan, L. K. S. Daldorff, P. J. Deka, C. R. DeVore, S. Elvidge, N. Ganushkina, J. D. Huba, B. V. Jackson, V. Jordanova, J. A. Linker, H. Liu, J. G. Luhmann, S. Markidis, P. Mayank, V. Merkin, N. Moens, D. Odstrcil, Y. A. Omelchenko, M. Palmroth, S. Poedts, A. J. Ridley, Y. Shou, V. Tenishev, D. R. Themens, G. Toth, W. Wang, R.‐P. Wilhelm, M. A. Young, B. Cecconi, M.‐Y. Chou, D. De Zeeuw, G. L. Delzanno, C. Didigu, M. El Alaoui, S. Fung, J. Green, Z. Huang, L. K. Jian, L. J. Landwer, M. Lesko, P. MacNeice, A. Masson, M. L. Mays, P. M. Mehta, M. S. Miesch, E. Palmerio, M. Petrenko, E. Provornikova, L. Rastätter, L. Rusaitis, N. Sachdeva, E. Samara, D. Sur, A. Taktakishvili, J. Topper, T. Tsui, C. Verbeke, J. Wang, C. Wiegand, M. Wiltberger, Y. Zheng, M. M. Bisi, M. K. Georgoulis, T. Kodikara, T. Pulkkinen, A. Chartier, D. da Silva, A. Faturahman, K. Garcia‐Sage, D. Kondrashov, V. E. Ledvina, W. Liu, C. Pandey, E. Resnick, C. Shi, R. S. Weigel, K. Whitman, I. Zakharenkova, K. Zhang   +87 more
wiley   +1 more source

First Use of Laser Ranging to Surface Retroreflectors for Orbit Determination: LRO-LOLA at the Moon

The Planetary Science Journal
We document the first operational demonstration of two-way spacecraft-to-surface laser ranging using Laser Retroreflector Arrays (LRAs) for orbit determination (OD) of the Lunar Reconnaissance Orbiter (LRO).
G. Cascioli, E. Mazarico, D. R. Cremons, M. K. Barker, D. Mao, S. Goossens, V. Viswanathan, S. Bertone, K. Jha, F. G. Lemoine, X. Sun, J. W. Head, D. E. Smith, M. T. Zuber   +13 more
doaj   +1 more source

New High Precision Measurements of Apollo Samples: 0.3–5 GHz Complex Refractive Indices

Journal of Geophysical Research: Planets, Volume 131, Issue 6, June 2026.
Abstract Active and passive radar techniques provide information on the subsurface structure and history of planetary bodies. However, interpretations of radar data are limited by our understanding of the complex dielectric permittivity and magnetic permeability of the surface material.
P. Linton, R. Ghent, P. Gorham, P. Allison, J. J. Beatty, A. Connolly, E. S. Costello, P. Lucey, A. Jung, A. Machtay, K. McBride, C. Miki, E. Oberla, J. Rolla, A. Romero‐Wolf, C. J. Tai Udovicic   +15 more
wiley   +1 more source

Discovery of Repeating Shallow Moonquakes in the Apollo Lunar Seismic Data

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract Shallow moonquakes have been considered unique due to their large magnitudes and affinities with intraplate earthquakes. However, the small number of detections (<80 events) has prevented detailed characterization. In this study, I identified a pair of repeating shallow moonquakes by analyzing a recently updated moonquake data set.
Keisuke Onodera
wiley   +1 more source

High-precision Relativistic Timescales for Cislunar Navigation

The Astrophysical Journal
We present a unified post-Newtonian framework for relativistic timing and coordinate transformations across the Barycentric, Geocentric, and Lunicentric Celestial Reference Systems ( LCRS ) and six timescales: Barycentric Coordinate Time ( TCB ...
Slava G. Turyshev
doaj   +1 more source

VGOS Dual Linear Polarization Data Processing Techniques Applied to Differential Observation of Satellites

Remote Sensing
The Very Long Baseline Interferometry Global Observing System (VGOS), a global network of stations equipped with small-diameter, fast-slewing antennas and broadband receivers, is primarily utilized for geodesy and astrometry.
Jiangying Gan, Fengchun Shu, Xuan He, Yidan Huang, Fengxian Tong, Yan Sun   +5 more
doaj   +1 more source

Apollo 17 Lunar Surface Gravimeter as a Seismometer: Relocating Shallow‐Moonquake Sources and Implications for Source Mechanism

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract Among the reported seismic events on the Moon, shallow moonquakes are known for their unique features, such as high‐frequency energy excitation, similarity to intraplate earthquakes, and the largest energy release of all reported moonquakes. Despite these interesting features, a small number of samples (<80 events) and sparse seismic network ...
Keisuke Onodera, Taichi Kawamura
wiley   +1 more source

Reliability of Assessing Lunar Crustal Density Structures Using the GRAIL Gravity Model

The Planetary Science Journal
The spatial resolution of gravity data acquired by the Gravity Recovery and Interior Laboratory (GRAIL) mission is adequate to resolve relatively small-scale density structures larger than approximately tens of kilometers within the lunar crust, which ...
Qingyun Deng, Zhiyong Xiao, Fei Li
doaj   +1 more source