Results 31 to 40 of about 604,790 (209)

Anaerobic Photosynthesizers and their Potential to Create a Biosphere on the Surface of the Red Planet [PDF]

open access: yesفناوری در مهندسی هوافضا, 2023
The atmosphere of the Red Planet or Mars contains 95% of carbon dioxide, 3% of nitrogen, 1.6% of argon and only a small amount of oxygen, and in terms of concentration is about one percent of the planet's atmosphere, which makes it virtually impossible ...
Fateme Mousavi
doaj   +1 more source

Alternate oscillations of Martian hydrogen and oxygen upper atmospheres during a major dust storm

open access: yesNature Communications, 2022
Dust storms on Mars drive water escape to space. Here, the authors show the impact Martian dust storms have on the abundance of atmospheric hydrogen and oxygen, and how this helps to overall oxidize the Martian atmosphere.
Kei Masunaga   +13 more
doaj   +1 more source

Simulation of Transient Topside Layer in the Martian Ionosphere

open access: yesRemote Sensing, 2023
Many Mars missions, e.g., Mariner, Viking, Mars Global Surveyor (MGS), Mars Express (MEX), and Mars Atmosphere and Volatile Evolution (MAVEN), have been launched to study the Martian atmosphere.
Chunhua Jiang, Rong Tian, Lehui Wei
doaj   +1 more source

Global distribution and climate sensitivity of the tropical montane forest nitrogen cycle

open access: yesNature Communications, 2022
Dust storms on Mars drive water escape to space. Here, the authors show the impact Martian dust storms have on the abundance of atmospheric hydrogen and oxygen, and how this helps to overall oxidize the Martian atmosphere.
Justin D. Gay   +2 more
doaj   +1 more source

Diurnal Variations of Water Ice in the Martian Atmosphere Observed by Mars Climate Sounder

open access: yesRemote Sensing, 2022
Simulation studies have proposed a significant thermal effect of water ice clouds on the Martian atmosphere and climate. However, previous studies focused more on seasonal variations but less on short-term changes.
Zhaopeng Wu   +4 more
doaj   +1 more source

The Impact of Mesoscale Processes on the Atmospheric Circulation of Mars [PDF]

open access: yes, 2010
The study of the modern martian atmosphere is (1) a key to the climate of Mars’s past; (2) useful for comparison with other terrestrial planets such as the Earth; and (3) can support hazard analysis and weather forecasting for future exploration and ...
Heavens, Nicholas Gray
core   +1 more source

MAVEN Observations of the Interloop Magnetic Reconnections at Mars

open access: yesThe Astrophysical Journal, 2023
Magnetic reconnection between neighboring magnetic field loops, the so-called interloop reconnection, is a common process to drive flares in the solar atmosphere.
Guo Chen   +9 more
doaj   +1 more source

Oxygen Isotopes and Volatiles in Martian Meteorite [PDF]

open access: yes, 2013
Oxygen isotopes were measured in mineral separates from martian meteorites using laser fluorination and were found to be remarkably uniform in both δ18O and Δ17O, suggesting that martian magmas did not assimilate aqueously altered crust regardless of any
Channon, Melanie Beth
core   +1 more source

Evaluation of the Atmospheric Chemical Entropy Production of Mars

open access: yesEntropy, 2015
Thermodynamic disequilibrium is a necessary situation in a system in which complex emergent structures are created and maintained. It is known that most of the chemical disequilibrium, a particular type of thermodynamic disequilibrium, in Earth’s ...
Alfonso Delgado-Bonal   +1 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

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