Results 81 to 90 of about 4,504,069 (226)

Fifty Years Later: Revisiting Viking 2 Seismic Signals Through InSight

AGU Advances, Volume 7, Issue 7, October 2026.
Abstract For nearly 50 years, the origin of the candidate seismic signals recorded by Viking 2 remained unresolved because of limited instrumental sensitivity, onboard observation, data compression, and the absence of Martian seismic context. Here we reconstruct the Viking seismic workflow and reinterpret the two Viking candidate events, recorded on ...
Wanbo Xiao, Jiaqi Li, Yanbin Wang, Andrew Lazarewicz   +3 more
wiley   +1 more source

Life on Mars? The physiological perspective

Experimental Physiology, EarlyView.
Ronan M. G. Berg, Damian M. Bailey
wiley   +1 more source

Mixed Magnetocrystalline Anisotropy and the Magnetization of Monoclinic 4C Pyrrhotite

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 10, October 2026.
Abstract Ferrimagnetic, monoclinic 4C pyrrhotite (Fe7S8), as the iron deficient endmember of the pyrrhotite solid‐solution series (Fe1–xS, 0 < x ≤ 0.125), is the main sulfide mineral widely used in rock and paleomagnetic studies of Earth's crust and extraterrestrial materials. Its particular magnetocrystalline anisotropy (MCA), characterized by an easy
Andreas U. Gehring, Peter G. Weidler, Dimitrios Koulialias, Jörg F. Löffler   +3 more
wiley   +1 more source

Immunological detection of small organic molecules in the presence of perchlorates: relevance to the life marker chip and life detection on Mars. [PDF]

, 2011
The proposed ExoMars mission, due to launch in 2018, aims to look for evidence of extant and extinct life in martian rocks and regolith. Previous attempts to detect organic molecules of biological or abiotic origin on Mars have been unsuccessful ...
David C. Cullen, Sims, Mark R., Cullen, David C., Rix, Catherine S., Catherine S. Rix, Mark R. Sims   +5 more
core   +1 more source

Ground Penetrating Radar Observations of Subsurface Structures From the Makgadikgadi Pans (Botswana): A Terrestrial Analogue of Martian Playa Lakes

Journal of Geophysical Research: Planets, Volume 131, Issue 10, October 2026.
Abstract Playa lakes are considered promising landing sites on Mars because of their strong astrobiological potential. Therefore, sediments and buried structures in terrestrial playa lakes have become the focus of numerous analogue studies. The inclusion of ground penetrating radar (GPR) in the payloads of Martian missions has opened new avenues for ...
M. Shawel, L. Capozzoli, T. H. Kahsay, B. Kgosidintsi, G. Romano, A. T. Selepeng, F. Franchi   +6 more
wiley   +1 more source

Catalytic/Protective Properties of Martian Minerals and Implications for Possible Origin of Life on Mars

Life, 2018
Minerals might have played critical roles for the origin and evolution of possible life forms on Mars. The study of the interactions between the “building blocks of life„ and minerals relevant to Mars mineralogy under conditions mimicking the
Teresa Fornaro, Andrew Steele, John Robert Brucato   +2 more
doaj   +1 more source

3D Architecture of Kodiak Butte as Evidence of Fluvial or Shoal‐Water Environments in Jezero Crater, Mars

Journal of Geophysical Research: Planets, Volume 131, Issue 10, October 2026.
Abstract The Mars 2020 mission has explored depositional environments recorded in a fan‐shaped deposit on the western side of Jezero crater. Kodiak butte is an isolated outcrop of sedimentary rock ∼1 km south of the western fan scarp and may be an erosional remnant of said fan.
O. A. Kanine, M. P. Lamb, B. L. Ehlmann, J. P. Grotzinger, C. D. Tate   +4 more
wiley   +1 more source

Time and Length Scales of the Martian Atmospheric Turbulence as Observed by the InSight Lander

Geophysical Research Letters
We provide a statistical analysis of the Martian near‐surface atmospheric turbulence based on in situ wind observations from NASA's InSight lander. We focus on the variations in length and time scales of the Martian atmospheric turbulence caused by the ...
Orkun Temel, Ozgur Karatekin
doaj   +1 more source

ARAMIS: a Martian radiative environment model built from GEANT4 simulations

Journal of Space Weather and Space Climate
A new model of the Martian surface radiative environment has been built: Atmospheric RAdiation Model for Ionizing spectra on martian Surface (ARAMIS). Based on Monte Carlo calculations, it offers high computational flexibility for surface flux spectra ...
Charpentier Gabin, Ruffenach Marine, Benacquista Rémi, Ecoffet Robert, Cappe Alexandre, Dossat Cédric, Varotsou Athina, Cintas Hugo, Paillet Alexis, Boyer Laure, Mekki Julien, Valet Philippe, Gourinat Yves   +12 more
doaj   +1 more source

How Large Are Marsquakes? Revisiting Magnitude Scaling and Implications for Marsquakes and Meteoroid Impacts

Journal of Geophysical Research: Planets, Volume 131, Issue 10, October 2026.
Abstract Reliable estimates of seismic source size on Mars are critical for interpreting tectonic activity and impact processes, constraining the planet's interior evolution, and informing the design of future Martian seismic experiments. However, because InSight observations are limited to a single station, magnitude estimates cannot rely on empirical
Jung‐Hun Song, Doyeon Kim, Gareth S. Collins, Victor C. Tsai, Philippe Lognonné   +4 more
wiley   +1 more source