Results 21 to 30 of about 965,575 (296)

Detection of Martian dust storms using mask regional convolutional neural networks

open access: yesProgress in Earth and Planetary Science, 2022
Martian dust plays a crucial role in the meteorology and climate of the Martian atmosphere. It heats the atmosphere, enhances the atmospheric general circulation, and affects spacecraft instruments and operations.
Rasha Alshehhi, Claus Gebhardt
doaj   +1 more source

Microwave spectroscopy of the Mars atmosphere [PDF]

open access: yesApplied Optics, 1995
A study of the use of millimeter-wavelength spectral transitions to investigate the atmosphere of Mars is presented. In the model experiments investigated it is assumed that a spectrometer in the frequency range from 100 to 260 GHz looks into a modest-sized telescope of from 30 to 50 cm aperture from a near-Mars orbit.
D O, Muhleman, R T, Clancy
openaire   +2 more sources

Rootless cones on Mars indicating the presence of shallow equatorial ground ice in recent times [PDF]

open access: yes, 2001
High resolution Mars Orbiter Camera (MOC) images have revealed the existence of clusters of small cones in the Cerberus plains, Marte Valles, and Amazonis Planitia, Mars.
McEwen, A. S.   +3 more
core   +1 more source

Chosen problems of terraforming Mars [PDF]

open access: yesPrzegląd Komunikacyjny
: Consideration was given to creating an atmosphere on Mars that would enable people to stay on the surface of Mars without spacesuits. The source of matter for this atmosphere are bodies brought from the outer zones of the Solar System.
Leszek Czechowski
doaj   +1 more source

A new model describing Forbush Decreases at Mars: combining the heliospheric modulation and the atmospheric influence

open access: yesEarth and Planetary Physics, 2020
Forbush decreases are depressions in the galactic cosmic rays (GCRs) that are caused primarily by modulations of interplanetary coronal mass ejections (ICMEs) but also occasionally by stream/corotating interaction regions (SIRs/CIRs).
Jingnan Guo   +4 more
doaj   +1 more source

Radiation and Dust Sensor for Mars Environmental Dynamic Analyzer Onboard M2020 Rover

open access: yesSensors, 2022
The Radiation and Dust Sensor is one of six sensors of the Mars Environmental Dynamics Analyzer onboard the Perseverance rover from the Mars 2020 NASA mission.
Victor Apestigue   +49 more
doaj   +1 more source

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

Influence of Magnetic Fields on Precipitating Solar Wind Hydrogen at Mars

open access: yesGeophysical Research Letters, 2022
Solar wind protons can interact directly with the hydrogen corona of Mars through charge exchange, resulting in energetic neutral atoms (ENAs) able to penetrate deep into the upper atmosphere of Mars.
Sarah Henderson   +4 more
doaj   +1 more source

Brief communication: Lower-bound estimates for residence time of energy in the atmospheres of Venus, Mars and Titan [PDF]

open access: yesNonlinear Processes in Geophysics, 2021
The residence time of energy in a planetary atmosphere, τ, which was recently introduced and computed for the Earth's atmosphere (Osácar et al., 2020), is here extended to the atmospheres of Venus, Mars and Titan.
J. Pelegrina   +2 more
doaj   +1 more source

The Mars Topside Ionosphere Response to the X8.2 Solar Flare of 10 September 2017

open access: yesGeophysical Research Letters, 2018
On 10 September 2017, irradiance from a magnitude X8.2 solar flare impacted Mars while the Mars Atmosphere and Volatile EvolutioN (MAVEN) orbiter was characterizing the Mars upper atmosphere.
E. M. B. Thiemann   +15 more
doaj   +1 more source

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