Results 71 to 80 of about 109,917 (327)

Martian Araneiforms: A Review

Journal of Geophysical Research: Planets, 2023
AbstractAraneiforms are enigmatic dendritic negative topography features native to Mars. Found across a variety of substrates and exhibiting a range of scales, morphologies, and activity level, they are hypothesized to form via insolation‐induced basal sublimation of seasonal CO2 ice.
L. E. Mc Keown, S. Diniega, G. Portyankina, C. J. Hansen, K.‐M. Aye, S. Piqueux, J. E. C. Scully   +6 more
openaire   +2 more sources

Advances and Trends in Terrain Classification Methods for Off‐Road Perception

Journal of Field Robotics, EarlyView.
ABSTRACT Off‐road autonomous vehicles (OAVs) are becoming increasingly popular for navigating challenging environments in agriculture, military, and exploration applications. These vehicles face unique challenges, such as unpredictable terrain, dynamic obstacles, and varying environmental conditions.
Tanzila Arafin, Anwar Hosen, Zoran Najdovski, Lei Wei, Mohammad Rokonuzzaman, Michael Johnstone   +5 more
wiley   +1 more source

Constraints on Martian Chronology from Meteorites

Geosciences, 2020
Martian meteorites provide the only direct constraints on the timing of Martian accretion, core formation, magmatic differentiation, and ongoing volcanism. While many radiogenic isotope chronometers have been applied to a wide variety of Martian samples,
Zoltán Váci, Carl Agee
doaj   +1 more source

ESTIMATION OF AEOLIAN DUNE MIGRATION OVER MARTIAN SURFACE EMPLOYING HIGH PRECISION PHOTOGRAMMETRIC MEASUREMENTS [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
At the present time, arguments continue regarding the migration speeds of Martian dune fields and their correlation with atmospheric circulation. However, precisely measuring the spatial translation of Martian dunes has been rarely successful due to the ...
J. Kim
doaj   +1 more source

Space Economy and Sustainability: A Systematic Review

Sustainable Development, EarlyView.
ABSTRACT The space economy is booming thanks to the increasing investment of government agencies, private companies, and venture capitalists. From the beginning of the New Space era, the array of actors involved in the development of technologies for extra‐terrestrial activities has increased, as well as the downstream applications that foster ...
Marianna Valente, Federico Caviggioli, Lara Agostini   +2 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

Matching Martian crustal magnetization and magnetic properties of Martian meteorites [PDF]

Meteoritics & Planetary Science, 2005
Magnetic properties of 26 (of 32) unpaired Martian meteorites (SNCs) are synthesized to further constrain the lithology carrying Martian magnetic crustal sources. Magnetic properties of ultramafic cumulates (i.e., Chassigny, Allan Hills [ALH] 84001) and lherzolitic shergottites (ALH 77005, Lewis Cliff [LEW] 88516) are one or two orders of magnitude too
Rochette, Pierre, Gattacceca, J., Chevrier, Vincent, Hoffmann, Viktor, Lorand, Jean-Pierre, Funaki, Minoru, Hochleitner, Rupert   +6 more
openaire   +3 more sources

Martian meso/micro-scale winds and surface energy budget [PDF]

, 2011
Regional, diurnal and seasonal variations of surface temperature are particularly large on Mars. This is mostly due to the Martian surface remaining close to radiative equilibrium.
Forget, F., Hinson, D. P., Lewis, S. R., Madeleine, J.-B., Millour, E., Montabone, L., Spiga, A.   +6 more
core  

Characterization of dust activity on Mars from MY27 to MY32 by PFS-MEX observations [PDF]

, 2018
We present spatial and temporal distributions of dust on Mars from Ls = 331 in MY26 until Ls = 80 in MY33 retrieved from the measurements taken by the Planetary Fourier Spectrometer (PFS) aboard Mars Express.
Aoki, Shohei, Aronica, Alessandro, Giuranna, Marco, Grassi, Davide, Saggin, Bortolino, Scaccabarozzi, Diego, Wolkenberg, Paulina   +6 more
core   +2 more sources

Physically Based Real‐Time Rendering of Eclipses

Computer Graphics Forum, EarlyView.
Abstract We present a novel approach for simulating eclipses, incorporating effects of light scattering and refraction in the occluder's atmosphere. Our approach not only simulates the eclipse shadow, but also allows for watching the Sun being eclipsed by the occluder.
S. Schneegans, J. Gilg, V. Ahlers, G. Zachmann, A. Gerndt   +4 more
wiley   +1 more source