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Space photography and the exploration of Mars [PDF]

Applied Optics, 1970
A general exposition of the scientific potentialities and analytic framework of space photography is presented using the photography of Mars from flybys and orbiters as the principal example.
Davies, M. E., Murray, B. C.
core   +4 more sources

In-Flight Preliminary Performance of GF-5B/Absorbing Aerosol Sensor

Remote Sensing, 2023
The Absorbing Aerosol Sensor (AAS) is carried on the Gao-Fen 5B (GF-5B) satellite, and it allows for the measurement of solar backscatter radiation by the atmosphere in the UV–Vis bands.
Yongmei Wang, Zhuo Zhang, Jinghua Mao, Houmao Wang, Entao Shi, Xiaohong Liu, Pengda Li, Jiu Liu   +7 more
doaj   +1 more source

Homogeneity and heterogeneity in near-infrared FTIR spectra of Ryugu returned samples

Earth, Planets and Space, 2023
Surface and subsurface materials of C-type near-Earth asteroid 162173 Ryugu were collected and successfully returned to the Earth in the Hayabusa2 mission.
Kentaro Hatakeda, Toru Yada, Masanao Abe, Tatsuaki Okada, Aiko Nakato, Kasumi Yogata, Akiko Miyazaki, Kazuya Kumagai, Masahiro Nishimura, Yuya Hitomi, Hiromichi Soejima, Kana Nagashima, Miwa Yoshitake, Ayako Iwamae, Shizuho Furuya, Tomohiro Usui, Kohei Kitazato   +16 more
doaj   +1 more source

A newly revised estimation of bulk densities and examination of the shape of individual Ryugu grains

Earth, Planets and Space, 2023
The bulk density of grains from a celestial body is a fundamental property related to its composition and structure, contributing to the understanding of its evolutionary history. In this study, we provide the bulk density of 637 grains returned from the
Akiko Miyazaki, Toru Yada, Kasumi Yogata, Kentaro Hatakeda, Aiko Nakato, Masahiro Nishimura, Kana Nagashima, Kazuya Kumagai, Yuya Hitomi, Hiromichi Soejima, Rui Tahara, Rei Kanemaru, Arisa Nakano, Miwa Yoshitake, Ayako Iwamae, Shizuho Furuya, Akira Tsuchiyama, Shogo Tachibana, Tatsuhiro Michikami, Tatsuaki Okada, Masanao Abe, Tomohiro Usui   +21 more
doaj   +1 more source

Methods for assessing change in brain plasticity at night and psychological resilience during daytime between repeated long-duration space missions

Scientific Reports, 2023
This study was designed to examine the feasibility of analyzing heart rate variability (HRV) data from repeat-flier astronauts at matching days on two separate missions to assess any effect of repeated missions on brain plasticity and psychological ...
Kuniaki Otsuka, Germaine Cornelissen, Yutaka Kubo, Koichi Shibata, Koh Mizuno, Tatsuya Aiba, Satoshi Furukawa, Hiroshi Ohshima, Chiaki Mukai   +8 more
doaj   +1 more source

Correlated iron isotopes and silicon contents in aubrite metals reveal structure of their asteroidal parent body

Scientific Reports, 2021
Iron isotopes record the physical parameters, such as temperature and redox conditions, during differentiation processes on rocky bodies. Here we report the results of a correlated investigation of iron isotope compositions and silicon contents of ...
Soumya Ray, Laurence A. J. Garvie, Vinai K. Rai, Meenakshi Wadhwa   +3 more
doaj   +1 more source

Numerical Simulation of the Lunar Polar Environment: Implications for Rover Exploration Challenge

Aerospace, 2023
The lunar polar regions are key areas for future exploration due to the long-term continuous illumination and persistently shadowed regions that can cold trap abundant water and other volatiles.
Hong Gan, Chengxuan Zhao, Guangfei Wei, Xiongyao Li, Guojun Xia, Xiao Zhang, Jingjing Shi   +6 more
doaj   +1 more source

Learn Generalization Feature via Convolutional Neural Network: A Fault Diagnosis Scheme Toward Unseen Operating Conditions

IEEE Access, 2020
In recent years, Convolutional neural networks (CNNs) have achieved start-of-art performance in the fault diagnosis field. If there is no available information on the unseen operating conditions, the model trained on the seen operating condition cannot ...
Yuantao Yang, Jiancheng Yin, Huailiang Zheng, Yuqing Li, Minqiang Xu, Yushu Chen   +5 more
doaj   +1 more source

Laboratory construction and curation scheme for returned samples of the chang’e-5 mission

Geoscience Letters, 2022
The analysis of samples returned from a planetary body is important to understand the origin, composition, evolution, and interactions with space or atmospheric weathering of the planet. In particular, pristine rocks, which are not affected by weathering,
Hongwei Yang, Ruihong Yang, Qian Wang
doaj   +1 more source

Exploration of energization and radiation in geospace (ERG): challenges, development, and operation of satellite systems

Earth, Planets and Space, 2018
The exploration of energization and radiation in geospace (ERG) satellite, nicknamed “Arase,” is the second satellite in a series of small scientific satellites created by the Institute of Space and Astronautical Science of the Japan Aerospace ...
Yosuke Nakamura, Seisuke Fukuda, Yasuko Shibano, Hiroyuki Ogawa, Shin-ichiro Sakai, Shigehito Shimizu, Ersin Soken, Yu Miyazawa, Hiroyuki Toyota, Akio Kukita, Yusuke Maru, Junichi Nakatsuka, Tomohiko Sakai, Shinsuke Takeuchi, Kenichiro Maki, Makoto Mita, Emiko Ogawa, Yuya Kakehashi, Kumi Nitta, Kazushi Asamura, Takeshi Takashima, Iku Shinohara   +21 more
doaj   +1 more source