Results 141 to 150 of about 736,131 (304)

Hubble Space Telescope observations of Mars [PDF]

Hubble Space Telescope (HST) afforded the possibility of resolving features as small as 100 km on the Martian surface even when it is at the far point of its orbit. Therefore it is ideally suited for monitoring seasonal changes on the red planet.
Clancy, Todd, James, Philip B., Kahn, Ralph, Lee, Steve, Martin, Leonard, Singer, Robert, Zurek, Richard   +6 more
core   +1 more source

Linear Baroclinic Instability in the Martian Atmosphere [PDF]

, 1984
J. R. Barnes
openalex   +1 more source

A hybrid origin for the Martian atmosphere

Geochemical Perspectives Letters
The Martian isotopic record displays a dichotomy in volatile compositions. Interior volatiles from the mantle record a chondritic heritage (e.g., H, N, Kr, Xe) whereas the atmospheric reservoir of Kr and Xe - which do not currently experience escape - record heritage from a solar-like source.
Pahlevan, Kaveh, Schaefer, Laura, Porcelli, Don   +2 more
openaire   +2 more sources

Direct Observations of Acceleration of Planetary Ions From Mars' Ionosphere Through Magnetic Reconnection When IMF Rotates

Geophysical Research Letters, Volume 52, Issue 22, 28 November 2025.
Abstract Mars lacks an intrinsic global magnetic field but possesses crustal magnetic anomalies and an atmosphere. Mars' ionosphere, resulted from interactions between Mars' atmosphere and solar radiation, directly interacts with solar wind and interplanetary magnetic field (IMF). However, the mechanisms governing ion acceleration and escape from Mars'
Rentong Lin, Shiyong Huang, Yuming Wang, Qiyang Xiong, Zhigang Yuan, Honghong Wu, Kui Jiang, Guoqiang Wang, Yutian Chi, Tielong Zhang   +9 more
wiley   +1 more source

Enhanced water loss from the martian atmosphere during a regional-scale dust storm and implications for long-term water loss

, 2021
James Holmes, S. R. Lewis, Manish Patel, Michael Chaffin, Eryn Cangi, Justin Deighan, N. M. Schneider, Shohei Aoki, Anna Fedorova, D. M. Kass, Ann Carine Vandaele   +10 more
openalex   +1 more source

Ice clouds in the Martian atmosphere

Journal of the Japanese Society of Snow and Ice, 2005
近年の探査衛星観測により火星の気象学的観測データの量が飛躍的に増加したことから,火星大気の氷雲の科学を定量的に論ずることが可能となってきた.火星のH2O氷雲は受動的トレーサであるため,その分布を調べることで直接観測が困難な火星大気の流れ場に関する情報を得ることができる.従来直接観測が困難であった極夜のCO2氷雲は,マーズグローバルサーベイヤーのレーザー高度計によりその存在が初めて明らかとなった.CO2氷雲は過去の火星の気候を考える上でも重要な要素である.過去に火星で実現していた温暖な気候を維持するには,厚いCO2大気にともなうCO2氷雲の温室効果が寄与していたのではないかと考えられているからである.CO2氷雲の形成過程と消散係数などの放射パラメータを調べることにより ...
openaire   +2 more sources

High Frequency Radar Perspective of Putative Subglacial Liquid Water on Mars

Geophysical Research Letters, Volume 52, Issue 22, 28 November 2025.
Abstract Anomalously bright radar reflections from the base of Mars' south polar cap raise the tantalizing possibility of present‐day liquid water. Orosei et al. (2018, https://doi.org/10.1126/science.aar7268) first reported bright subsurface echoes from the Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS) prompting studies of ...
Gareth A. Morgan, Matthew R. Perry, Bruce A. Campbell, Nathaniel E. Putzig, Jennifer L. Whitten, Fabrizio Bernardini   +5 more
wiley   +1 more source

Water ice at low to midlatitudes on Mars

, 2011
In this paper, we analyze water ice occurrences at the surface of Mars using near-infrared observations, and we study their distribution with a climate model. Latitudes between 45{\deg}S and 50{\deg}N are considered.
Aharonson, Bibring, Bibring, Byrne, Carr, Carrozzo, Christensen, Christensen, Clifford, Costard, Dickson, Dickson, Dundas, Farrell, Feldman, Forget, Forget, Forget, François Forget, Haberle, Head, Hecht, Heldmann, Hourdin, Hourdin, John Mustard, Joshi, Joshi, Jouglet, Kieffer, Kossacki, Kreslavsky, Kreslavsky, Langevin, Langevin, Lemmon, Levrard, Madeleine, Malin, Mangold, Mathieu Vincendon, Mischna, Mohlmann, Montmessin, Morozova, Mustard, Neukum, Niles, Parente, Pavlov, Price, Putzig, Schmitt, Schon, Schorghofer, Schorghofer, Smith, Spiga, Spiga, Spinrad, Squyres, Vincendon, Vincendon, Vincendon, Vincendon, Williams, Williams, Zorzano   +67 more
core   +1 more source

Exploring Magnetic Reconnection in the Collisional Ionosphere of Mars With MAVEN

Geophysical Research Letters, Volume 52, Issue 22, 28 November 2025.
Abstract Magnetic reconnection in collisional plasmas has been widely studied in solar and laboratory plasma disciplines, but in situ measurements in space plasmas have rarely been utilized to explore this reconnection regime. Here we study collisional effects on magnetic reconnection in the Martian ionosphere by analyzing in situ data obtained by the ...
Y. Harada, T. E. Cravens, D. A. Brain, J. S. Halekas, J. G. Luhmann, C. M. Fowler, K. G. Hanley, J. P. McFadden   +7 more
wiley   +1 more source

Review for the Design and Experimental Study of a Coaxial Twin-rotor Mars Unmanned Aerial Vehicle

Space: Science & Technology
The thin atmosphere of Mars presents a necessary yet challenging flight environment for low-altitude flying vehicles or unmanned aerial vehicles. As a key technology, Martian unmanned aerial vehicles hold marked value and importance for scientific ...
Zhifang Ke, Yu Hu, Qingkai Meng, Yongjie Shu, Jinghan Tu, Molei Zhao, Shiyi Wei, Haitao Zhang, Bin Xu, Zhaopu Yao, Wei Wei   +10 more
doaj   +1 more source