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Long-Lived In-Situ Solar System Explorer (LLISSE): Potential Contributions to the Next Decade of Solar System ExplorationVenus, while having similar size, mass, and location in the solar system to Earth, varies from Earth in many ways and holds many scientific mysteries despite many missions that have focused on it in the past. Primary differences include Venus' climate, atmosphere, and perhaps most notably the extreme surface conditions. The layers of sulfuric acid clouds and high pressure CO2 laden atmosphere make remote sensing at Venus much less effective than at other solar system bodies. In addition, surface conditions present formidable engineering challenges due to the high temperature, pressure, and reactive chemistry. To date, landed missions have not been able to last more than about 2 hours on the surface [1]. This has resulted in significant knowledge gaps about the surface conditions of this important body in the solar system. The science community has effectively no in-situ temporal data at the Venus surface. These data are critical for the development of a thorough understanding of Venus' weather and the processes by which chemical species interact with each other and are transported throughout the atmospheric column. The LLISSE platform, and its variants, are a foundation for future mission concepts based on a core set of long-lived technologies providing significant new science as well as demonstrating new technical capabilities. After completion, LLISSE has the potential to be a complimentary element to missions going to Venus and would provide unique and important science to missions whether they be orbiters or short duration landers.
Document ID
Acquisition Source
Glenn Research Center
Document Type
Conference Paper
Kremic, Tibor
(NASA Glenn Research Center Cleveland, OH, United States)
Hunter, Gary W.
(NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
December 20, 2019
Publication Date
November 6, 2019
Subject Category
Lunar And Planetary Science And Exploration
Report/Patent Number
Meeting Information
Meeting: VEXAG Annual Meeting 2019
Location: Boulder, CO
Country: United States
Start Date: November 6, 2019
End Date: November 8, 2019
Sponsors: Lunar and Planetary Institute (LPI)
Funding Number(s)
WBS: 811073
Distribution Limits
Work of the US Gov. Public Use Permitted.
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