Results 31 to 40 of about 31,297 (265)
Nucleobase synthesis in interstellar ices
Nature Communications, 2019 The formation of nucleobases can take place in extraterrestrial environments. Here the authors show the simultaneous synthesis of three purine nucleobases and three pyrimidine from interstellar ice analogues that suggest the evolution from molecular ...
Yasuhiro Oba +4 more
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Geosciences, 2018 We briefly present preliminary results of our study of the radioresistant bacteria in a low temperature and pressure and high-radiation environment and hypothesize the ability of microorganisms to survive extraterrestrial high-radiation environments ...
Anatoly Pavlov +5 more
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Making Contact: A Review of Robotic Attachment Mechanisms for Extraterrestrial Applications
Advanced Intelligent Systems, 2023 The space environment offers unique challenges for robotic grippers and controllable attachment mechanisms. Applications include satellite and orbital debris capture, perching for free‐floating robots inside the International Space Station, climbing ...
Matthew Spenko
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Astrobiology, 2022 This article describes a study of frozen volcanic deposits collected from volcanoes Tolbachik and Bezymianny on the Kamchatka Peninsula, Russia, and Deception Island volcano, Antarctica. In addition, we studied suprasnow ash layers deposited after the 2007 eruptions of volcanoes Shiveluch and Bezymianny on Kamchatka.
Tatiana A. Vishnivetskaya +4 more
openalex +4 more sources
Terrestrial exposure of a fresh Martian meteorite causes rapid changes in hydrogen isotopes and water concentrations [PDF]
, 2018 Determining the hydrogen isotopic compositions and H2O contents of meteorites and their components is important for addressing key cosmochemical questions about the abundance and source(s) of water in planetary bodies.
A Al-Kathiri +30 more
core +1 more source
Gas-phase prebiotic chemistry in extraterrestrial environments [PDF]
Proceedings of the International Astronomical Union, 2009 AbstractA variety of molecular species up to complex polyatomic molecules/radicals have been identified in many extraterrestrial gaseous environments, including interstellar clouds, cometary comae and planetary atmospheres. Amongst the identified molecules/radicals, a large percentage are organic in nature and encompass also prebiotic molecules ...
openaire +3 more sources
Properties and Characteristics of Regolith-Based Materials for Extraterrestrial Construction
EngineeringThe construction of extraterrestrial bases has become a new goal in the active exploration of deep space. Among the construction techniques, in situ resource-based construction is one of the most promising because of its good sustainability and ...
Cheng Zhou +6 more
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Two types of mirror mode waves in the Kronian magnetosheath
Earth and Planetary Physics, 2023 A mirror mode wave is a fundamental magnetic structure in the planetary space environment that is persistently compressed by solar wind, especially in the magnetosheath.
XinYa Duanmu +3 more
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Exploring, Mapping, and Data Management Integration of Habitable Environments in Astrobiology
Frontiers in Microbiology, 2019 New approaches to blending geoscience, planetary science, microbiology-geobiology/ecology, geoinformatics and cyberinfrastructure technology disciplines in a holistic effort can be transformative to astrobiology explorations.
Marjorie A. Chan +8 more
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Powered Landing Control of Reusable Rockets Based on Softmax Double DDPG
Aerospace, 2023 Multi-stage launch vehicles are currently the primary tool for humans to reach extraterrestrial space. The technology of recovering and reusing rockets can effectively shorten rocket launch cycles and reduce space launch costs.
Wenting Li +4 more
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