Results 41 to 50 of about 3,085 (204)

A Mars Environment Chamber Coupled with Multiple In Situ Spectral Sensors for Mars Exploration

Sensors, 2021
Laboratory simulation is the only feasible way to achieve Martian environmental conditions on Earth, establishing a key link between the laboratory and Mars exploration. The mineral phases of some Martian surface materials (especially hydrated minerals),
Zhongchen Wu, Zongcheng Ling, Jiang Zhang, Xiaohui Fu, Changqing Liu, Yanqing Xin, Bo Li, Le Qiao   +7 more
doaj   +1 more source

Effects of Ambient Moisture and Large‐Strain Dynamic Preloading on the Dynamic Properties of the EAC‐1A Regolith Simulant

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT The EAC‐1A lunar mare simulant, a silty sand, was selected by the European Astronaut Center (EAC) for use in the LUNA analogue facility's lunar simulation testbed. Its stress‐ and strain‐dependent shear modulus and damping ratio were determined via resonant column testing on specimens prepared either from ambient moisture material or oven ...
Christos Vrettos
wiley   +1 more source

DepthFormer: Depth‐Enhanced Transformer Network for Semantic Segmentation of the Martian Surface From Rover Images

Earth and Space Science
The Martian surface, with its diverse landforms that reflect the planet's evolution, has attracted increasing scientific interest. While extensive data is needed for interpretation, identifying landform types is crucial. This semantic information reveals
Yuan Ma, Zhaojin Li, Bo Wu, Ran Duan
doaj   +1 more source

The Martian Boulder Automatic Recognition System, MBARS

Earth and Space Science, 2022
Boulder‐sized clasts are common on the surface of Mars, and many are sufficiently large to be resolved by the high resolution imaging science experiment (HiRISE) camera aboard the Mars reconnaissance orbiter. The size, number, and location of boulders on
Don R. Hood, S. F. Sholes, S. Karunatillake, C. I. Fassett, R. C. Ewing, J. Levy   +5 more
doaj   +1 more source

Sulfur Cycling as a Viable Metabolism under Simulated Noachian/Hesperian Chemistries

Life, 2022
Water present on the surface of early Mars (>3.0 Ga) may have been habitable. Characterising analogue environments and investigating the aspects of their microbiome best suited for growth under simulated martian chemical conditions is key to ...
James A. W. Oliver, Matthew Kelbrick, Nisha K. Ramkissoon, Amy Dugdale, Ben P. Stephens, Ezgi Kucukkilic-Stephens, Mark G. Fox-Powell, Susanne P. Schwenzer, André Antunes, Michael C. Macey   +9 more
doaj   +1 more source

Interplanetary frontiers: terraforming from an invasion science perspective

Oikos, EarlyView.
The pursuit of a multi‐planetary existence represents one of humanity's greatest frontiers. If applied justly, it offers an opportunity to extend its civilization's lifespan amid escalating sustainability crises on Earth. One approach increasingly gaining traction is terraforming, a hitherto theoretical ecological and evolutionary experiment revolving ...
Teun Everts, Ronaldo Sousa, Phillip J. Haubrock   +2 more
wiley   +1 more source

The color of the Martian sky and its influence on the illumination of the Martian surface [PDF]

Journal of Geophysical Research: Planets, 1999
The dust in the atmosphere above the Mars Pathfinder landing site produced a bright, red sky that increases in redness toward the horizon at midday. There is also evidence for an absorption band in the scattered light from the sky at 860 nm. A model of the sky brightness has been developed [Markiewicz et al., this issue] and tested against Imager for ...
Thomas, N., Markiewicz, W., Sablotny, R., Wuttke, M., Keller, H., Johnson, J., Reid, R., Smith, P.   +7 more
openaire   +2 more sources

Martian‑Regolith Simulant Confined Nanogenerators for Wireless Tactile Sensing for Human‐Machine Interface

Small, EarlyView.
A Martian regolith‐simulant/PDMS triboelectric nanogenerator is developed as an ISRU‐inspired, self‐powered tactile sensor for wireless human–machine interface applications. ABSTRACT Achieving a sustainable energy system for space missions remains challenging due to the continued reliance on Earth‐supplied materials.
Shidhin Mappoli, Keval K. Sonigara, Martin Pumera   +2 more
wiley   +1 more source

Radiation-induced alteration of apatite on the surface of Mars: first in situ observations with SuperCam Raman onboard Perseverance

Scientific Reports
Planetary exploration relies considerably on mineral characterization to advance our understanding of the solar system, the planets and their evolution.
E. Clavé, O. Beyssac, S. Bernard, C. Royer, G. Lopez-Reyes, S. Schröder, K. Rammelkamp, O. Forni, A. Fau, A. Cousin, J. A. Manrique, A. Ollila, J. M. Madariaga, J. Aramendia, S. K. Sharma, T. Fornaro, S. Maurice, R. C. Wiens, the SuperCam Science team   +18 more
doaj   +1 more source

Photovoltaics-Driven Power Production Can Support Human Exploration on Mars

Frontiers in Astronomy and Space Sciences, 2022
A central question surrounding possible human exploration of Mars is whether crewed missions can be supported by available technologies using in situ resources.
Anthony J. Abel, Anthony J. Abel, Aaron J. Berliner, Aaron J. Berliner, Mia Mirkovic, Mia Mirkovic, William D. Collins, William D. Collins, Adam P. Arkin, Adam P. Arkin, Adam P. Arkin, Douglas S. Clark, Douglas S. Clark, Douglas S. Clark   +13 more
doaj   +1 more source