Results 61 to 70 of about 24,756 (203)

Survey on AI‐Enabled Computer Vision Technologies and Applications for Space Robotic Missions

Journal of Field Robotics, EarlyView.
ABSTRACT This survey provides a comprehensive overview of recent advancements and challenges in Artificial Intelligence (AI)‐enabled computer vision (CV) techniques for space robotic missions, spanning critical phases such as Entry, Descent, and Landing (EDL), orbital operations, and planetary surface exploration.
Maciej Quoos, Steven Kay, Julia Wajoras, Robert Field, Evridiki V. Ntagiou, Fakher Mohammad, Yang Gao   +6 more
wiley   +1 more source

Stratigraphic evidence for modern‐like glacier extents in south‐central Alaska within the last glacial period (MIS 3)

Boreas, EarlyView.
The last (Wisconsinan) glacial period was punctuated in North America by two glacial maxima, known as the Early and Late Wisconsinan glaciations. In Alaska, these maxima and their subsequent retreats have been the object of dating efforts to reconstruct local climatic events and compare them to global trends.
Bruno Belotti, Elizabeth J. Cassel, Timothy C. Bartholomaus, Michael G. Loso, Michael S. Christoffersen, John W. Holt   +5 more
wiley   +1 more source

Laboratory measurements show temperature-dependent permittivity of lunar regolith simulants

Earth, Planets and Space, 2023
The mapping of available water–ice is a crucial step in the lunar exploration missions. Ground penetrating radars have the potential to map the subsurface structure and the existence of water–ice in terms of the electromagnetic properties, specifically ...
M. Kobayashi, H. Miyamoto, B. D. Pál, T. Niihara, T. Takemura   +4 more
doaj   +1 more source

Small but mighty: Impact hazards from iron Near‐Earth Objects

Meteoritics &Planetary Science, EarlyView.
Abstract Small asteroids can impact Earth unexpectedly, as demonstrated by the Chelyabinsk event in 2013. The warning times are likely to be short, and the first tools for fast hazard predictions have been developed in the last years for encounters with rocky or cometary objects, which quickly fragment in the atmosphere and cause airbursts. However, in
Robert Luther, Natalia Artemieva, Andrea Schmalen, Kai Wünnemann, Detlef Koschny, Richard Moissl   +5 more
wiley   +1 more source

An Analysis of the Exposure History of Apollo 17 Soils: Exploring Relationships Between Lunar Soil Maturity Indices

Journal of Geophysical Research: Planets, Volume 131, Issue 1, January 2026.
Abstract Analysis of space weathering features in lunar regolith using transmission electron microscopy (TEM) allows researchers to characterize the surface exposure timescale of individual grains from the Moon. TEM analysis of regolith grains from Apollo 17 scoop samples, collected from five different locations in the Taurus‐Littrow Valley (TLV), each
J. A. McFadden, M. S. Thompson
wiley   +1 more source

Ionospheric Day‐to‐Day Variability Driven by Nonlinear Interactions Between the Terdiurnal Tide and Planetary Waves Under Magnetospheric Modulation

Geophysical Research Letters, Volume 52, Issue 23, 16 December 2025.
Abstract Day‐to‐day variability is a persistent feature of the ionosphere, but distinguishing contributions from the atmosphere below or geospace above remains unclear. Here, simultaneous observations of thermospheric meridional winds and ionospheric electron density from the Sanya Incoherent Scatter Radar (SYISR) reveal that the terdiurnal tide (TDT),
Xu Zhou, Ning Zhang, Zhongqiu Wang, Haibing Ruan, Yihui Cai, You Yu, Maosheng He, Junyi Wang, Mingyuan Li, Yuyan Jin, Feng Ding, Xinan Yue   +11 more
wiley   +1 more source

Equatorial Ionospheric VTEC Perturbations During the 21 June 2020 Solar Eclipse

Earth and Space Science, Volume 12, Issue 12, December 2025.
Abstract The annular solar eclipse of 21 June 2020, provided a valuable opportunity to examine the ionospheric response to celestial events. This study analyzes variations in Vertical Total electron content (VTEC) over the equatorial region using data from the UQRG Global Ionospheric Map (GIM), ground‐based GPS‐TEC measurements, and equatorial ...
Atirsaw Muluye Tilahun, Asebe Oljira, Melessew Nigussie, Sujan Prasad Gautam, Yohannes Getachew Ejigu   +4 more
wiley   +1 more source

Gravity Modeling of Lunar Lava Tubes: Insights From a Terrestrial Analog

Journal of Geophysical Research: Planets, Volume 130, Issue 11, November 2025.
Abstract The exploration of lunar lava tubes can address challenges of human habitation on the Moon by identifying natural shelters against radiation, temperature extremes, and micrometeoroid impacts. This study shows the feasibility of detecting lunar lava tubes with gravimetry using Ape Cave in Washington State, USA, as a terrestrial analog. Ape Cave'
Sarai Montañez Muñoz, Glyn Williams‐Jones, Nathan Hayward, Antonina Calahorrano‐Di Patre, Behraad Bahreyni   +4 more
wiley   +1 more source

Extra Zebra Stripes Observed by Macao Science Satellite‐1 in the Inner Radiation Belt

Geophysical Research Letters, Volume 52, Issue 19, 16 October 2025.
Abstract Zebra stripes, characterized by periodic banded structures in the energy‐L shell spectra of energetic electrons in the Earth's inner radiation belt, are understood to result from the azimuthal drift of electrons perturbed by prompt electric field perturbations.
Ziyang Wang, Ying Liu, Qiugang Zong, Yixin Sun, Hong Zou, Yuguang Ye, Xuzhi Zhou   +6 more
wiley   +1 more source

The Utility of a Hyperspectral Infrared Imager for Crewed Exploration of Planetary Bodies

Earth and Space Science, Volume 12, Issue 10, October 2025.
Abstract Planetary analog simulations are a powerful exercise for understanding the utility of deployable instruments, their operational protocols, and the visualization of data products during ExtraVehicular Activities (EVAs). This paper presents results of a field campaign by the NASA Solar System Exploration Research Virtual Institute (SSERVI ...
C. I. Honniball, A. D. Rogers, K. E. Young, Z. Morse, B. Wolfe, C. Achilles, J. R. Ralleta, P. L. Whelley, P. G. Lucey, T. D. Glotch   +9 more
wiley   +1 more source