Results 91 to 100 of about 15,357 (267)
Mission Orbit Design for the First-Ever Lunar Far-Side Sample Return Mission
Space: Science & TechnologyThe Chang’e-6 successfully performed the first-ever robotic lunar far-side sample return mission. To address the novel mission requirements for multi-object collaborative coordination during lunar surface operations, an innovative mission orbit design ...
Zhanfeng Meng, Shan Gao, Haiyue Ao
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IET Science, Measurement & TechnologyThe co‐frequency co‐time full duplex (CCFD) system transmits and receives signals at the same frequency simultaneously, which can effectively improve the communication spectrum utilization of satellite and solve the problem of satellite frequency ...
Yuting Zhang +3 more
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CoRR13 pages, 5 figures, to be published in 2025 AAS/AIAA Space Flight Mechanics Meeting conference ...
Daniel Baker, Sean Phillips
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Perspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.Abstract NASA has led multispectral (≥3 wavelength bands) thermal infrared (TIR) sensor development from the earliest days of the agency. These data are critical in addressing a wide range of scientific questions and administration priories by measuring both temperature (for wildfire and volcanic eruption monitoring, agricultural plant stress, and ...
M. S. Ramsey +8 more
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Scientific design of complex multi‐agent systems: A practice modeling approach
AI Magazine, Volume 47, Issue 3, Fall 2026.Abstract Through advances in computing power, sensor systems, networking, and AI programming, new automated systems are being developed with capabilities for acting in the world that heretofore only people could do—driving automobiles, controlling aircraft systems, delivering packages.
William J. Clancey
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The Evolution of Autonomous Systems for Planetary Cave Exploration: A Review
Journal of Field Robotics, Volume 43, Issue 6, Page 4094-4115, September 2026.ABSTRACT The exploration of Subsurface Access Points (SAPs), such as lava tubes on the Moon and Mars, has gained significant interest due to their potential as stable environments shielded from surface radiation and temperature extremes. These sites are considered high‐value targets for detecting water and signs of ancient life, and assessing their ...
Sarah Swinton +4 more
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, 2003 Biblioteca de Educación del Ministerio de Educación, Cultura y Deporte; Calle San Agustín, 5 - 3 planta; 28014 Madrid; Tel.
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International Journal of Satellite Communications and Networking, Volume 44, Issue 5, Page 594-606, September/October 2026.ABSTRACT The integration of low Earth orbit (LEO) satellite constellations with commercial aircraft communication systems presents critical challenges in maintaining continuous connectivity during dynamic flight conditions. Current geostationary satellite systems suffer from high round‐trip latency ( > 500 ms) and inadequate coverage at high latitudes,
Raúl Parada +4 more
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Materials Research ExpressElectroless Ni−P coatings on magnesium alloy specimens were heat-treated in vacuum and air atmospheres at 200 °C, 250 °C, and 300 °C. The results showed that the coating grains evolved into fine nodular structures following heat treatment at 200 °C and ...
Sizhen Li +11 more
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To Mars through LEO: How commercial space travel will change exploration‐enabling research
Experimental Physiology, EarlyView.
Christopher Puhl, Michail Magkos
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