Results 71 to 80 of about 24,212,222 (226)

In search of signs of life on Mars with China’s sample return mission Tianwen-3 [PDF]

The aim of China’s Mars sample return mission, known as Tianwen-3, is to collect at least 500 g of samples from Mars and return them to Earth around 2031.
Gong, Jianya, Hou, Zengqian, Jiang, Kun, Kang, Zhizhong, Li, Yang, Li, Yiliang, Lin, Yangting, Liu, Jia, Liu, Jizhong, Liu, Yang, Pang, Fuchuan, Qin, Liping, Ruan, Renhao, Sheng, Zhenfeng, Wang, Chi, Wang, Juntao, Wang, Yuming, Wei, Guangfei, Xiao, Long, Xu, Mengjiao, Xu, Yigang, Yu, Bingkun, Zhang, Chaolin, Zhao, Yu Yan Sara, Zou, Xin   +24 more
core   +1 more source

First Observations of Mars Atmosphere and Ionosphere with Tianwen-1 Radio-Occultation Technique on 5 August 2021

Remote Sensing, 2022
The radio-occultation technique can provide vertical profiles of planetary ionospheric and atmospheric parameters, which merit the planetary-climate and space-weather scientific research so far.
Xiong Hu, Xiaocheng Wu, Shuli Song, Maoli Ma, Weili Zhou, Qingchen Xu, Lei Li, Cunying Xiao, Xie Li, Chi Wang, Qinghui Liu, Lue Chen, Guangming Chen, Jianfeng Cao, Mei Wang, Peijia Li, Zhanghu Chu, Bo Xia, Junfeng Yang, Cui Tu, Dan Liu, Simin Zhang, Quan Zhang, Zheng Li   +23 more
doaj   +1 more source

Electrode Engineering for High‐Durability Variable‐Emissivity Devices Based on Reversible Copper Electrodeposition

Advanced Science, EarlyView.
An Ir‐based reversible copper electrodeposition variable‐emissivity device achieved over 8000 cycles with just 11% radiative temperature variation decay. This stability stems from Ir's inherent inertness, high conductivity, and strength, which collectively suppress cracking and corrosion.
Runyun He, Tianwen Liu, Liqiang Zhang, Tuoyu Liu, Dan Tang, Wenxia Zhang, Jundong Tao, Tingting Shi, Yijing Song, Haifeng Cheng, Yao Zhang, Dongqing Liu   +11 more
wiley   +1 more source

Geological Characteristics and Targets of High Scientific Interest in the Zhurong Landing Region on Mars

Geophysical Research Letters, 2021
We used imaging, laser altimeter and thermal infrared data to map a 0.5 by 0.5° area containing the landing site of the Zhurong rover of the Tianwen‐1 mission.
Jiannan Zhao, Zijun Xiao, Jun Huang, James W. Head, Jiang Wang, Yutong Shi, Bo Wu, Le Wang   +7 more
doaj   +1 more source

Investigation on the Coherent Component of SHARAD Surface Echo and Surface Roughness: Scaling Behavior and Influence of Hurst Exponent

Earth and Space Science, Volume 13, Issue 2, February 2026.
Abstract The radar surface echo can be separated into coherent and incoherent components by statistical approaches, and the coherent component can be described by a backscattering model related to the RMS height. According to backscattering models for fractal surfaces, the coherent power in decibels decreases with RMS height on a scale independent of ...
Tiansheng Hong, Yan Su, Elena Pettinelli, Roberto Orosei, Sebastian Emanuel Lauro, Zhibin Li, Chunyu Ding, Elisabetta Mattei, Barbara Cosciotti, Chunlai Li   +9 more
wiley   +1 more source

Ancient ocean coastal deposits imaged on Mars. [PDF]

The northern lowlands of early Mars could have contained a significant quantity of liquid water. However, the ocean hypothesis remains controversial due to the lack of conclusive evidence from the Martian subsurface.
Cardenas, Benjamin, Duan, Diwen, Elsworth, Derek, Fang, Guangyou, Li, Jianhui, Liu, Hai, Lu, Haijing, Manga, Michael, Meng, Xu, Zhang, Fengshou, Zhang, Jinhai, Zhou, Bin   +11 more
core   +1 more source

Plasma Acceleration by Magnetic Tension Forces in the Martian Magnetotail: MAVEN Observations

Geophysical Research Letters, Volume 52, Issue 24, 28 December 2025.
Abstract The Martian magnetotail is a dynamic region where several processes contribute to plasma acceleration. Here, we analyze ∼5 ${\sim} 5$ years of Mars Atmosphere and Volatile EvolutioN (MAVEN) data to evaluate the role of magnetic tension forces in driving plasma acceleration within current sheets in the tail. Based on magnetic field measurements,
Norberto Romanelli, Ronan Modolo, Gina A. DiBraccio, Jacob R. Gruesbeck, Shaosui Xu, Christopher M. Fowler, Eduard Dubinin, Jasper S. Halekas, Shannon M. Curry, Robert J. Lillis, Jared R. Espley, Kathleen G. Hanley, Yingjuan Ma, Suranga Ruhunusiri, David L. Mitchell, Christian Mazelle   +15 more
wiley   +1 more source

A High-Accuracy, High Anti-Noise, Unbiased Frequency Estimator Based on Three CZT Coefficients for Deep Space Exploration Mission

Sensors, 2022
Deep space exploration navigation requires high accuracy of the Doppler measurement, which is equivalent to a frequency estimation problem. Because of the fence effect and spectrum leakage, the frequency estimation performances, which is based on the FFT
Weitao Lu, Lue Chen, Zhen Wang, Jianfeng Cao, Tianpeng Ren   +4 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

Remote 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, Kim-Chiu Chow, Jing Xiao, Yi Xu   +3 more
doaj   +1 more source

Direct Observations of Acceleration of Planetary Ions From Mars' Ionosphere Through Magnetic Reconnection When IMF Rotates

Geophysical Research Letters, Volume 52, Issue 22, 28 November 2025.
Abstract Mars lacks an intrinsic global magnetic field but possesses crustal magnetic anomalies and an atmosphere. Mars' ionosphere, resulted from interactions between Mars' atmosphere and solar radiation, directly interacts with solar wind and interplanetary magnetic field (IMF). However, the mechanisms governing ion acceleration and escape from Mars'
Rentong Lin, Shiyong Huang, Yuming Wang, Qiyang Xiong, Zhigang Yuan, Honghong Wu, Kui Jiang, Guoqiang Wang, Yutian Chi, Tielong Zhang   +9 more
wiley   +1 more source