Results 21 to 30 of about 31,430 (260)
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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Fire Safety in Extraterrestrial Environments [PDF]
Space 98, 1998 Despite rigorous fire-safety policies and practices, fire incidents are possible during lunar and Martian missions. Fire behavior and hence preventive and responsive safety actions in the missions are strongly influenced by the low-gravity environments in flight and on the planetary surfaces.
openaire +1 more source
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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Astrobiology and Society in Europe Today [PDF]
, 2018 This book describes the state of astrobiology in Europe today and its relation to the European society at large. With contributions from authors in more than 20 countries and over 30 scientific institutions worldwide, the document illustrates the ...
Capova, Klara Anna +3 more
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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 ...
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How Rare Are Extraterrestrial Civilizations and When Did They Emerge? [PDF]
, 1998 It is shown that, contrary to an existing claim, the near equality between the lifetime of the sun and the timescale of biological evolution on earth does not necessarily imply that extraterrestrial civilizations are exceedingly rare. Furthermore, on the
Carter B. +4 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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Life in Extraterrestrial Environments [PDF]
, 1961 Life in extraterrestrial ...
Basa, K. B., Hawrylewicz, E. J.
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