Results 31 to 40 of about 26,803 (256)

Long-Endurance Mars Exploration Flying Vehicle: A Project Brief

open access: yesAerospace, 2023
The paper presents specifications for the Long-Endurance Mars Exploration Flying Vehicle (LEMFEV), which will be used as future design input data. The specifications are based on the analysis of previous Mars missions and scientific data collected by the
Elena Karpovich   +4 more
doaj   +1 more source

Martian Bow Shock and Magnetic Pile-Up Barrier Formation Due to the Exosphere Ion Mass-Loading [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2011
Bow shock, formed by the interaction between the solar wind and a planet, is generated in different patterns depending on the conditions of the planet.
Eojin Kim   +6 more
doaj   +1 more source

Tianwen-1 and MAVEN Observations of the Response of Mars to an Interplanetary Coronal Mass Ejection

open access: yesThe Astrophysical Journal, 2023
Interplanetary coronal mass ejections (ICMEs) are solar transients that have significant effects on the upper atmosphere and ionosphere of Mars. The simultaneous spacecraft observations from Tianwen-1/MOMAG in solar wind and multiple instruments on board
Bingkun Yu   +24 more
doaj   +1 more source

Martian zeolites as a source of atmospheric methane [PDF]

open access: yesIcarus, 2016
The origin of the martian methane is still poorly understood. A plausible explanation is that methane could have been produced either by hydrothermal alteration of basaltic crust or by serpentinization of ultramafic rocks producing hydrogen and reducing crustal carbon into methane.
Mousis, O.   +9 more
openaire   +4 more sources

Photochemistry of Methane and Ethane in the Martian Atmosphere [PDF]

open access: yesJournal of Geophysical Research: Planets, 2020
AbstractWe develop an existing 1‐D photochemistry model to include a comprehensive description of organic chemistry on Mars that includes the oxidation products of methane (CH4) and ethane (C2H6),a longer‐chain hydrocarbon that can be used to differentiate between abiotic and biotic surface releases of CH4.
Benjamin M. Taysum, Paul I. Palmer
openaire   +3 more sources

Influence of gravity waves on the climatology of high-altitude Martian carbon dioxide ice clouds [PDF]

open access: yesAnnales Geophysicae, 2018
Carbon dioxide (CO2) ice clouds have been routinely observed in the middle atmosphere of Mars. However, there are still uncertainties concerning physical mechanisms that control their altitude, geographical, and seasonal distributions.
E. Yiğit, A. S. Medvedev, P. Hartogh
doaj   +1 more source

Martian Proton Aurora Brightening Reveals Atmospheric Ion Loss Intensifying

open access: yesGeophysical Research Letters, 2023
The Martian proton aurora is a distinct aurora phenomenon resulting from the direct deposition of solar wind energy into Mars' dayside atmosphere. What solar wind parameters influence the aurora activity in the short term is yet unknown, as are the ...
Fei He   +12 more
doaj   +1 more source

Earth – Mars Similarity Criteria for Martian Vehicles [PDF]

open access: yesINCAS Bulletin, 2010
In order to select the most efficient kind of a martian exploring vehicle, the similarity criteria are deduced from the equilibrium movement in the terrestrial and martian conditions.
Octavian TRIFU, George SAVU
doaj   +1 more source

Cloud trains associated with Martian Mountain Lee Waves on the eastern side of the Phlegra Montes

open access: yesEarth, Planets and Space, 2023
Mountain lee waves have often been observed on the eastern side of the Phlegra Montes as wave trains visualized by water ice clouds in the Martian atmosphere. The seasonality and formation condition of these lee waves and associated cloud trains have not
Kazunori Ogohara, Maaya Ro
doaj   +1 more source

The dust storm and its interaction with atmospheric waves on Mars

open access: yes地球与行星物理论评, 2021
Mars shares many similarities with Earth. The comparative study of the climate between the two planets is of great significance to understand the evolution of the Earth's atmosphere.
Zhaopeng Wu, Jing Li, Tao Li, Jun Cui
doaj   +1 more source

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