Results 41 to 50 of about 166,062,727 (217)

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

Journal of Field Robotics, Volume 43, Issue 7, Page 4475-4514, October 2026.
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, Hao Zhou, Dalin Zhou, Zhaojie Ju   +3 more
wiley   +1 more source

A Machine Learning‐Based Model of Three‐Dimensional Ion Fluxes in the High‐Altitude Earth's Northern Cusp

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 5, October 2026.
Abstract Magnetic reconnection at the dayside magnetopause is the primary pathway for transferring mass, momentum, and energy from the solar wind into the terrestrial magnetosphere. Previous studies have shown that the spatiotemporal dynamics of dayside magnetic reconnection can be inferred remotely from properties of Earth's cusps, specifically their ...
Gonzalo Cucho‐Padin, David Sibeck, Xueyi Wang, Daniel da Silva, Xiaolei Li, Gowtan Valluri, Cristian Ferradas, Hyunju Connor, Yu Lin   +8 more
wiley   +1 more source

Relative drift between black aurora and the ionospheric plasma [PDF]

, 2005
International audienceBlack auroras are recognized as spatially well-defined regions within uniform diffuse aurora where the optical emission is significantly reduced.
J. Semeter, Kosch, M.J., Blixt, Erik Mårten, Kosch, M. J., M. J. Kosch, Blixt, E. M., E. M. Blixt, Semeter, J.   +7 more
core   +2 more sources

In Situ Observations of Ionospheric Perturbations Triggered by the Launches of 2022 and 2023 South Korea Rockets

Space Weather
We investigated in situ ionospheric plasma density perturbations triggered by the South Korea KSLV‐2 rocket launches on 21 June 2022, and 25 May 2023, by combining ground‐based GNSS total electron content (TEC) observations with in situ measurements from
Jong‐Min Choi, Charles Chien‐Hung Lin, Panthalingal Krishnanunni Rajesh, Ray Tzu‐Jui Huang, Ho‐Fang Tsai, Young‐Sil Kwak, Jaeheung Park, Shih‐Ping Chen   +7 more
doaj   +1 more source

Topside Ionospheric Models Revealed by Automatically Detected Relative and Absolute Swarm-A/C Perturbations

Remote Sensing
Differing from previous work on ionospheric models only using a relative method, in this paper, stereoscopic ionospheric models are innovatively constructed utilizing both relative and absolute automatic plasma perturbations.
Tianyu Liu, Mei Li, Hongzhu Yan, Feng Gao, Xiliang Liu, Yajing Gao   +5 more
doaj   +1 more source

Acoustic Resonance between Ground and Thermosphere

Data Science Journal, 2009
Ultra-low frequency acoustic waves called "acoustic gravity waves" or "infrasounds" are theoretically expected to resonate between the ground and the thermosphere.
M Matsumura, T Iyemori, Y Tanaka, D Han, M Nose, M Utsugi, N Oshiman, H Shinagawa, Y Odagi, Y Tabata   +9 more
doaj   +1 more source

Auroral turbulence of the ionospheric convection [PDF]

Vestnik MGTU, 2016
The formation of the two-dimensional auroral structures in the cold ionospheric-magnetospheric plasma under convection has been considered. The convection inhomogeneity leads to appearance of the currents across and along the magnetic field lines.
Volkov М. А.
doaj   +1 more source

Evolution of ion distribution functions in ionospheric plasmas perturbed by Alfvén waves

Journal of Plasma Physics
This study investigates ion kinetic effects during the parametric decay instability (PDI) of parallel-propagating Alfvén waves under plasma conditions characteristic of the Earth’s ionosphere. By using a series of hybrid particle-in-cell simulations, we examine the evolution of ion velocity distribution functions (VDFs) in ultra-low-beta plasmas.
Dario Recchiuti, Luca Franci, Lorenzo Matteini, Emanuele Papini, Roberto Battiston, Mirko Piersanti   +5 more
openaire   +2 more sources

Magnetic Reconnection Driven by the Impact of a Magnetosheath High‐Speed Jet

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract High‐speed jets (HSJs) are transient structures in the magnetosheath characterized by enhanced dynamic pressure. While recent studies report that HSJs trigger magnetic reconnection at the magnetopause, whether they can directly drive reconnection within the magnetosheath remains an open question.
Jiuqi Ma, Xinliang Gao, Quanming Lu, Shimou Wang, Jin Guo, Zhongwei Yang, Binbin Tang, Junyi Ren, Rongsheng Wang   +8 more
wiley   +1 more source

High-latitude observations of impulse-driven ULF pulsations in the ionosphere and on the ground [PDF]

, 2003
International audienceWe report the simultaneous observation of 1.6?1.7 mHz pulsations in the ionospheric F-region with the CUTLASS bistatic HF radar and an HF Doppler sounder, on the ground with the IMAGE and SAMNET magnetometer arrays, and in the ...
Menk, F. W., Lester, M., Honary, F., Wright, D. M., F. W. Menk, M. Lester, T. K. Yeoman (7601525), F. Honary (7604621), T. K. Yeoman, M. Lester (7589660), D. M. Wright (7583069), D. M. Wright, F. Honary, F. W. Menk (7675571), Yeoman, T. K.   +14 more
core   +2 more sources