Results 41 to 50 of about 25,918 (240)

In situ observations of ions and magnetic field around Phobos: the mass spectrum analyzer (MSA) for the Martian Moons eXploration (MMX) mission

Earth, Planets and Space, 2021
The mass spectrum analyzer (MSA) will perform in situ observations of ions and magnetic fields around Phobos as part of the Martian Moons eXploration (MMX) mission to investigate the origin of the Martian moons and physical processes in the Martian ...
Shoichiro Yokota, Naoki Terada, Ayako Matsuoka, Naofumi Murata, Yoshifumi Saito, Dominique Delcourt, Yoshifumi Futaana, Kanako Seki, Micah J. Schaible, Kazushi Asamura, Satoshi Kasahara, Hiromu Nakagawa, Masaki N. Nishino, Reiko Nomura, Kunihiro Keika, Yuki Harada, Shun Imajo   +16 more
doaj   +1 more source

Revisiting the Solar Wind Deceleration Upstream of the Martian Bow Shock Based on MAVEN Observations

The Astrophysical Journal
The solar wind deceleration upstream of the Martian bow shock is examined using particle and magnetic field measurements obtained by the Mars Atmosphere and Volatile EvolutioN (MAVEN).
Yuqi Liu, Kaijun Liu, Ducheng Lu, Hui Huang, Jingyi Zhou, Kun Cheng, Xianming Zheng, Yan Wang, Mengmeng Wang   +8 more
doaj   +1 more source

Martian atmospheric O₃ retrieval development for the NOMAD-UVIS spectrometer [PDF]

, 2017
The composition of atmospheric trace gases and aerosols is a highly variable and poorly constrained component of the martian atmosphere, and by affecting martian climate and UV surface dose, represents a key parameter in the assessment of suitability for
Hathi, B., Hewson, W., Holmes, J., Irwin, P. G. R., Leese, M., Lewis, S. R., Mason, J. P., Patel, M. R.   +7 more
core  

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 Holy Grail: A road map for unlocking the climate record stored within Mars' polar layered deposits [PDF]

, 2020
In its polar layered deposits (PLD), Mars possesses a record of its recent climate, analogous to terrestrial ice sheets containing climate records on Earth.
Banfield, Don, Becerra, Patricio, Buhler, Peter, Byrne, Shane, Calvin, Wendy, Carter, Lynn, Edgar, Lauren, Ehlmann, Bethany, Emmett, Jeremy, Hanley, Jennifer, Hansen, Candice, Hayne, Paul O., Hecht, Michael, Henderson, Bryana L., Herkenhoff, Ken, Holt, John W., Horgan, Briony, Hvidberg, Christine, Kahre, Melinda, Kleinböhl, Armin, Koutnik, Michelle, Lalich, Daniel, Landis, Margaret, Milkovich, Sarah, Navarro, Thomas, Obbard, Rachel, Paige, David A., Parra, Sergio, Perry, Matthew R., Piqueux, Sylvain, Putzig, Nathaniel, Siegler, Matthew, Skidmore, Mark, Smith, Isaac B., Staehle, Robert L., Stern, Jennifer, Thomas, Nicolas, Zacny, Kris   +37 more
core   +1 more source

Evolution of the Martian Atmosphere [PDF]

Icarus, 1994
Carbon dioxide, nitrogen, and the nonradiogenic and radiogenic noble gases are tracked from primordial inventories to their present states in a revised model of atmospheric evolution on Mars. Elemental and isotopic abundances evolve by hydrodynamic escape, impact erosion, outgassing, sputtering, photochemical escape of nitrogen, and carbonate formation
openaire   +1 more source

Survey on AI‐Enabled Computer Vision Technologies and Applications for Space Robotic Missions

Journal of Field Robotics, EarlyView.
ABSTRACT This survey provides a comprehensive overview of recent advancements and challenges in Artificial Intelligence (AI)‐enabled computer vision (CV) techniques for space robotic missions, spanning critical phases such as Entry, Descent, and Landing (EDL), orbital operations, and planetary surface exploration.
Maciej Quoos, Steven Kay, Julia Wajoras, Robert Field, Evridiki V. Ntagiou, Fakher Mohammad, Yang Gao   +6 more
wiley   +1 more source

The Evolution of Autonomous Systems for Planetary Cave Exploration: A Review

Journal of Field Robotics, EarlyView.
ABSTRACT The exploration of Subsurface Access Points (SAPs), such as lava tubes on the Moon and Mars, has gained significant interest due to their potential as stable environments shielded from surface radiation and temperature extremes. These sites are considered high‐value targets for detecting water and signs of ancient life, and assessing their ...
Sarah Swinton, Daniel Mitchell, Jamie Blanche, Euan McGookin, David Flynn   +4 more
wiley   +1 more source

The trapped heavy noble gases in recently found Martian meteorites [PDF]

, 2002
The composition of the trapped Ar, Kr, and Xe in the Martian meteorites Los Angeles, Say Al Uhaymir 005/008, and 094 is discussed and found to be consistent with a mixture of Martian mantle and atmosphere noble gases and terrestrial ...
Busemann, H., Eugster, O.
core  

A Low‐Power Radioisotope XRF Spectrometer for Detection of Light Elements on Planetary Missions

X-Ray Spectrometry, EarlyView.
ABSTRACT Current X‐ray spectrometers for in situ geochemical analysis on planetary missions typically rely either on X‐ray tubes, which demand electrical power and add mass and thermal complexity, or on alpha particle X‐ray spectrometers (APXS) that use rare 244Cm$$ {}^{244}\mathrm{Cm} $$ sources, and come with severe concerns on radiation safety and ...
Leandro Silveri, Artem Knyazev, Hashem Alaidaros, Maryam Manzoor Amanullah, Zach Ioannou, Tengiz Ibrayev, Danish Khan, Sara Leardini, Laura Manenti, Simi Maria Emilia Mangani, Safa Naseem, Sandhya Sharma, Sara Trevisan, Alia Zino, Francesco Arneodo   +14 more
wiley   +1 more source