Results 71 to 80 of about 1,544 (211)

GAUSS - genesis of asteroids and evolution of the solar system [PDF]

open access: yes, 2021
The goal of Project GAUSS (Genesis of Asteroids and evolUtion of the Solar System) is to return samples from the dwarf planet Ceres. Ceres is the most accessible candidate of ocean worlds and the largest reservoir of water in the inner Solar System.
Agarwal, J   +27 more
core  

Characterizing and Removing Ultra-Violet Contamination in Ion Observations on Board Tianwen-1

open access: yesAtmosphere, 2023
The Mars Ion and Neutral Particle Analyzer (MINPA) onboard Tianwen-1 aims to study the interaction between Mars and the solar wind via in situ ion measurement and energetic neutral atom imaging.
Limin Wang   +11 more
doaj   +1 more source

Magnetic Reconnection as a Potential Trigger for Magnetotail Flapping at Mars: Insights From MAVEN and Tianwen‐1 Observations

open access: yesAGU Advances, Volume 7, Issue 2, April 2026.
Abstract Magnetotail current sheet (CS) flapping is a universal plasma phenomenon observed at multiple planets, yet its triggering mechanisms remain poorly understood outside of Earth. At Mars, single‐spacecraft observations have also reported tail flapping, but the processes responsible for its onset have never been identified.
Yuanzheng Wen   +18 more
wiley   +1 more source

Establishment of Safety Evaluation Factors for Dust Storms in the Landing Area Selection for Tianwen‐3 Mission

open access: yesEarth and Space Science
China's Tianwen‐3 mission is expected to be launched around 2028, making it the first Mars sample return mission. Dust storms occurring in all seasons on Mars can affect the accuracy and safety of the landing and takeoff phases of Mars sampling missions.
Puzheng Wen   +3 more
doaj   +1 more source

Characteristics of Dust Devils in Two Pre-Selected Landing Regions of the Tianwen-1 Mission—Comparing Observations and Predictions Using Numerical Model

open access: yesRemote Sensing, 2022
The spatial and temporal distribution of dust devils (DDs) in the two pre-selected landing regions (ZA and ZB) of the Tianwen-1 mission in southern Utopia Planitia have been investigated by using images from the Context Camera (CTX) of the Mars ...
Ye-Meng Wang   +3 more
doaj   +1 more source

Mars Express: From the Launch Pad to a 20-Year Success Record at Mars [PDF]

open access: yes
Mars Express was conceived and built by ESA as a successor of the unsuccessful Russian Mars-96 mission. It was planned from the onset as an orbiter and lander mission to be able to carry out long-term, remote sensing and in-situ scientific investigations
Bibring, J.-P.   +11 more
core   +1 more source

Listening for the Landing:Seismic Detections of Perseverance’s arrival at Mars with InSight [PDF]

open access: yes, 2021
The entry, descent, and landing (EDL) sequence of NASA’s Mars 2020 Perseverance rover will act as a seismic source of known temporal and spatial localization. We evaluate whether the signals produced by this event will be detectable by the InSight lander
Daubar, Ingrid J   +2 more
core   +2 more sources

Magnetosphere of Mars at Almost Radial Interplanetary Magnetic Field

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract We have studied the structure of the Martian magnetosphere under conditions of an almost radial interplanetary magnetic field (IMF). Under such conditions, the currents driven by the motional electric field −1cVsw×BIMF ${-}\frac{1}{c}{\mathbf{V}}_{sw}\times {\mathbf{B}}_{\mathit{IMF}}$ are expected to be strongly reduced, and the induced ...
E. Dubinin   +9 more
wiley   +1 more source

Crater Detection and Population Statistics in Tianwen-1 Landing Area Based on Segment Anything Model (SAM)

open access: yesRemote Sensing
Crater detection is useful for research into dating a planetary surface’s age and geological mapping. The high-resolution imaging camera (HiRIC) carried by the Tianwen-1 rover provides digital image model (DIM) datasets with a resolution of 0.7 m/pixel ...
Yaqi Zhao, Hongxia Ye
doaj   +1 more source

Automatic Segmentation of Radar Data from the Chang'E-4 Mission Using Unsupervised Machine Learning: A Data-Driven Interpretation Approach [PDF]

open access: yes
Chang'E-3, E-4 and E-5 were the first planetary missions with in-situ ground-penetrating radar (GPR) in their scientific payloads. Apart from the Chang'E missions, in-situ GPR has also been used in the Martian missions Tianwen-1 and Perseverance ...
Feng, Jianqing   +9 more
core   +2 more sources

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