Tootfinder

OMG, author Andy Weir of "The Martian" is back! And to all you readers of the book... heeeere comes "Rocky"! 😜
▶️ PROJECT HAIL MARY Trailer (2025) Ryan Gosling
https://youtube.com/watch?v=vkcENinRJ-g&si=q8nQmxQHv23i_iDh

This https://arxiv.org/abs/2505.21810 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

SHARAD Illuminates Deeper Martian Subsurface Structures with a Boost from Very Large Rolls of the MRO Spacecraft
Throughout its mission, the Mars Reconnaissance Orbiter (MRO) has often rolled about its along-track axis by up to 28° to partially compensate for the suboptimal location of the Shallow Radar (SHARAD) antenna along an edge of the spacecraft that is opposite the imaging payload deck, thereby enhancing the signal-to-noise ratio (S/N) of echoes returned from the surface. After recent modeling work predicted that a much larger roll would improve the S/N by ~10 dB relative to nadir-pointed observin…

A systematic study of hot O production and escape from Martian atmosphere in response to enhanced EUV Irradiance from Solar Flares
Chirag Rathi, Dimitra Atri, Dattaraj B. Dhuri
https://arxiv.org/abs/2506.20337

A systematic study of hot O production and escape from Martian atmosphere in response to enhanced EUV Irradiance from Solar Flares
The study of the evolution of Martian atmosphere and its response to EUV irradiation is an extremely important topic in planetary science. One of the dominant effects of atmospheric losses is the photochemical escape of atomic oxygen from Mars. Increasing the magnitude of the irradiation changes the response of the atmosphere. The purpose of the current paper is to analyze the effects of enhanced EUV irradiation on the escape rates of oxygen atoms. We have used the solar flare of 2017 September…

SHARAD Illuminates Deeper Martian Subsurface Structures with a Boost from Very Large Rolls of the MRO Spacecraft
Nathaniel E. Putzig, Gareth A. Morgan, Matthew R. Perry, Bruce A. Campbell, Jennifer L. Whitten, Fabrizio Bernardini, Alessandro DiCarlofelice, Pierfrancesco Lombardo
https://arxiv.org/abs/2505.21810

SHARAD Illuminates Deeper Martian Subsurface Structures with a Boost from Very Large Rolls of the MRO Spacecraft
Throughout its mission, the Mars Reconnaissance Orbiter (MRO) has often rolled about its along-track axis by up to 28° to partially compensate for the suboptimal location of the Shallow Radar (SHARAD) antenna along an edge of the spacecraft that is opposite the imaging payload deck, thereby enhancing the signal-to-noise ratio (S/N) of echoes returned from the surface. After recent modeling work predicted that a much larger roll would improve the S/N by ~10 dB relative to nadir-pointed observin…

MASC: Integrated Sensing and Communications for the Martian Internet of Space
Haofan Dong, Ozgur B. Akan
https://arxiv.org/abs/2506.16198 https://

MASC: Integrated Sensing and Communications for the Martian Internet of Space
Mars exploration missions increasingly demand reliable communication systems, yet harsh environmental conditions -- particularly frequent dust storms, extreme Doppler effects, and stringent resource constraints -- pose unprecedented challenges to conventional communication approaches. This paper presents the Martian Adaptive Sensing and Communication (MASC) system specifically designed for the Martian environment. MASC establishes a physically interpretable channel model and develops three key …

Investigation of Martian UV Dayglow Emissions in the Southern Hemisphere during Solar Quiet-time Conditions: Insights from Multi-year MAVEN/IUVS Observations
Aadarsh Raj Sharma, Lot Ram, Sumanta Sarkhel
https://arxiv.org/abs/2505.13977

Investigation of Martian UV Dayglow Emissions in the Southern Hemisphere during Solar Quiet-time Conditions: Insights from Multi-year MAVEN/IUVS Observations
The southern hemisphere of Mars possesses concentrated region of strong crustal magnetic fields (CMF), which generate localized magnetic anomalies that can influence atmospheric dynamics and energy deposition in the Martian thermospheric-ionospheric system. Although their effects on the atmosphere (>200 km) in the southern hemisphere are well documented, however their role in modulating the behavior of atmospheric plasma and neutrals below 200 km are poorly understood. The atmosphere at these a…

A 3D model simulation of hydrogen chloride photochemistry on Mars: Comparison with satellite data
Benjamin Benne (The University of Edinburgh, School of GeoSciences, UK, Centre for Exoplanet Science, University of Edinburgh, UK), Paul I. Palmer (The University of Edinburgh, School of GeoSciences, UK, Centre for Exoplanet Science, University of Edinburgh, UK), Benjamin M. Taysum (DLR, Germany), Kevin S. Olsen (Department of Physics, University of Oxford, UK, School of Physical Sciences,…

A 3D model simulation of hydrogen chloride photochemistry on Mars: Comparison with satellite data
HCl was detected in the Martian atmosphere by the NOMAD and ACS spectrometers aboard the ExoMars TGO. Photochemical models show that using gas-phase chemistry alone is insufficient to reproduce these data. Recent work has developed a heterogeneous chemical network within a 1D photochemistry model, guided by the seasonal variability in HCl. The aim of this work is to show that incorporating heterogeneous chlorine chemistry into a global 3D model of Martian photochemistry with conventional gas-ph…

#ndwgoecountdown Weltraum zum Staunen und Mitmachen
Unterhaltsame Shows für Kinder zum Zuschauen und Mitmachen bieten die Promovierenden des MPI für Sonnensystemforschung. Darin erforschen die Zuschauer*innen das Sonnensystem, erkunden die Oberfläche des Mars, wagen einen „Weltraumspaziergang“ und helfen dabei, unsere nächste Weltraummission zu planen.
Kommt gerne 18:00 …