Results 41 to 50 of about 445 (185)

Hyper‐buoyancy flotation increases cervical disc height and reduces vertebral stiffness, with only partial reversal after acute 1 g axial loading

Experimental Physiology, EarlyView.
Abstract Exposure to microgravity is associated with stature increases, moderate‐to‐severe back/neck pain and elevated lumbar and cervical intervertebral disc (IVD) herniation risk post‐flight. Whilst lumbar pathophysiology has been investigated, little attention has been placed on the cervical spine.
D. Marcos‐Lorenzo, P. Hernández Bernal, R. Fernández Corujo, A. Gil Martínez, J. Swanenburg, D. A. Green   +5 more
wiley   +1 more source

Jumping in simulated lunar gravity with blood flow restriction as a potential exercise countermeasure: The acute physiological effects

Experimental Physiology, EarlyView.
Abstract The present study examined the cardiovascular, metabolic, neuromuscular and perceptual effects of low‐intensity jumping in simulated lunar gravity (∼20% bodyweight) with blood flow restriction (BFR). Fourteen healthy adults (24 ± 4 years; 1.81 ± 0.06 m; 75 ± 12 kg) completed an incremental jumping test in simulated lunar gravity (9.5° head‐up ...
Patrick Swain, Filipa Santos, Nick Caplan, Cody Latue, Billie Illingworth, Nicky Sheard, Luke Hughes   +6 more
wiley   +1 more source

Two Possible Orbital Histories of Phobos

The Planetary Science Journal
The two moons of Mars, Phobos and Deimos, have orbits that are close to the Martian equator, indicating their formation from a circumplanetary disk. Phobos is currently migrating toward Mars due to tidal dissipation within the planet and may be disrupted
Matija Ćuk, Kaustub P. Anand, David A. Minton   +2 more
doaj   +1 more source

Super‐Resolution of Planetary Images Based on Generative Adversarial Network

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 4, August 2026.
Abstract Currently, satellite imagery serves as the primary means of observing terrestrial planets such as the Mars, the Moon, and Mercury. Enhancing the resolution and quality of these images can provide more detailed insights into planetary surfaces. However, improvements in image quality are often limited by the constraints of sensor technology and ...
Xiaoran Zhang, Yiran Wang, Miao Zhuo
wiley   +1 more source

Bidirectional Energy Transfer via Simultaneous Wave‐Particle Resonances in Inhomogeneous Space Plasmas

AGU Advances, Volume 7, Issue 4, August 2026.
Abstract Wave‐particle resonance is a key mechanism for energy transfer in collisionless plasmas with important implications for wave excitation and particle acceleration. Cyclotron resonance occurs when a particle's gyromotion synchronizes with the wave fields, with their interactions usually describable by quasilinear diffusion or nonlinear trapping.
Jing‐Huan Li, Xu‐Zhi Zhou, Shan Wang, Zhi‐Yang Liu, Yuri V. Khotyaintsev, Daniel B. Graham, Qiu‐Gang Zong, Chao Yue, Anton V. Artemyev, Yoshiharu Omura, Si Liu, Li Li, Jie Ren, Zi‐Kang Xie, Yun Yan   +14 more
wiley   +1 more source

Water-driven Accessible Potential Karstic Caves in Hebrus Valles, Mars: Implications for Subsurface Habitability

The Astrophysical Journal Letters
The Hebrus Valles region on Mars exhibits geomorphological indicators of past aqueous activity, such as fluvial channels and aligned sinkholes. While Martian skylights have mostly been linked to volcanic or tectonic origins, caves formed by water ...
Ravi Sharma, Chunyu Ding, Francesco Soldovieri, Jiangwan Xu, Zihang Liang, Yachen Xie, Yan Su, Changzhi Jiang, YuXiao Zhi, Tang Chuanhu, Xiaohang Qiu, Zhonghan Lei, Haoyu Chen, Li Qingquan   +13 more
doaj   +1 more source

Alteration of a Mantle‐Derived Dunite Boulder in Jezero Crater, Mars

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract In 2023, the Mars 2020 Perseverance rover explored the youngest preserved deposits on the Western fan of Jezero crater, Mars: a field of meter‐scale boulders dispersed above the previously explored sandstone and siltstone units. Reflectance spectra of the boulders delineated two classes, one olivine‐bearing and one pyroxene‐bearing.
E. L. Moreland, M. Bramble, K. L. Siebach, A. C. Pascuzzo, M. Morris, S. J. VanBommel, M. Jones, S. Siljeström, A. Srivastava, A. H. Treiman, J. Hurowitz   +10 more
wiley   +1 more source

On the Feasibility of Laser Satellite Communications from the Martian Surface

IAF Space Communications and Navigation Symposium
Free space optical (FSO) communication using lasers is a rapidly developing field in telecommunications that can offer advantages over traditional radio frequency technology. For example, optical laser links may allow transmissions at far higher data rates, require less operating power and smaller systems and have a smaller risk of interception.
Fernandez Rodriguez, E., Rowland, Z.C., Overzier, R.A.   +2 more
openaire   +3 more sources

GIS analyses of Martian satellite imageries and topographic data

The Journal of the Geological Society of Japan, 2012
A large amount of satellite imagery is now available for the surface of Mars; this imagery has spatial resolutions up to 25 cm/pixel, and a Digital Terrain Model (DTM) has been constructed to allow the analysis of Martian topography. These data are important for studies of geological and geomorphological processes on Mars, and may form the basis of ...
Goto K., KOMATSU, Goro, Saito H.
openaire   +3 more sources

Martian Magnetotail Neutral Sheet Asymmetry Driven by Heavy Planetary Pickup Ions

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract In the induced magnetotail of Mars, the neutral sheet is an important channel for atmospheric ion escape, yet the role of heavy planetary pickup ions in shaping its geometry has been unclear. Using three‐dimensional hybrid simulations, we demonstrate that these ions induce a global neutral sheet asymmetry via mass loading.
Jingyi Zhou, Zhenpeng Su, Kaijun Liu, Rentong Lin, Esa Kallio, Riku Jarvinen, Yuming Wang   +6 more
wiley   +1 more source