1 Venera-D Landing Sites Selection and Cloud Layer Habitability Workshop Report IKI Moscow, Russia October 2-5, 2019 Space Science Research Institute (IKI), Russian Academy of Science, Roscosmos, and NASA http://venera-d.cosmos.ru/index.php?id=workshop2019&L=2 https://www.hou.usra.edu/meetings/venera-d2019/ 2 Table of Contents Introduction ...................................................................................................................................................... 6 Final Agenda .................................................................................................................................................. 10 Astrobiology Special Collection of papers from the workshop .................................................... 14 Technical Report: Venera-D Landing Site and Cloud Habitability Workshop ......................... 15 1.0 Missions to Venus .......................................................................................................................... 15 1.1 Past and Present ................................................................................................................................. 15 1.1.1 Available Instruments and Lessons Learned Surface Geology ........................................................... 15 1.1.2 Available Instruments and Lessons Learned for Cloud Habitability ............................................... 16 1.2 Future Missions ................................................................................................................................... 18 1.2.1 Proposed and Recommended Architectures for Advancement in Surface Geology ............... 18 1.2.2 Observational Targets and Instrument Requirements for Advancement in Surface Geology ................................................................................................................................................................................................ 18 1.2.3 Proposed and Recommended Architectures for Advancement in Cloud Habitability .......... 19 1.2.4 Observational Targets and Instrument Requirements for Advancement in Cloud Habitability ....................................................................................................................................................................................... 19 2.0 Lab and Experimental Studies, Current and Future Needs for Science Advancement in Venus Surface Science ........................................................................................... 20 2.1 Motivation for new and on-going Venus surface science studies ...................................... 20 2.2 Results from Current and On-going Work ................................................................................. 20 2.3 Goals for Future Work ...................................................................................................................... 20 2.4 Requirements and Recommendations to meet Future Goals .............................................. 20 3.0 Lab and Experimental Studies, Current and Future Needs for Science Advancement in Venus Cloud Habitability Studies ..................................................................... 21 3.1 Motivation for new and on-going Venus Cloud Habitability Studies ................................ 21 3.2 Results from Current and On-going Work ................................................................................. 21 3.3 Goals for Future Work ...................................................................................................................... 21 3.4 Requirements and Recommendations to meet Future Goals .............................................. 22 4.0 Role of Modeling in Venus Exploration Planning at the Surface ................................. 22 4.1 What’s happening Now ..................................................................................................................... 22 4.2 Hope for the future, and needs to meet those goals ............................................................... 23 4.2.1 Tools ..................................................................................................................................................................................... 23 4.2.2 Data ....................................................................................................................................................................................... 23 5.0 Next Steps for Venus Cloud Exploration ............................................................................... 23 5.1 What’s happening now ..................................................................................................................... 23 5.2 Needs to meet these goals ............................................................................................................... 24 5.2.1 Tools ..................................................................................................................................................................................... 24 5.2.2 Data ....................................................................................................................................................................................... 24 6.0 Summary of Workshop Outcomes .......................................................................................... 25 3 6.1 Landing Site .......................................................................................................................................... 26 6.2 Cloud Habitability .............................................................................................................................. 26 7.0 Next Steps: Future Workshops ................................................................................................. 27 8.0 References ........................................................................................................................................ 29 Appendix A. Summary of Workshop Talks ...................................................................................... 31 Landing Site Selection Workshop Notes .......................................................................................... 31 Day 1: Landing Site Session 1: Engineering ......................................................................................... 31 Presenter: Ludmila Zasova ........................................................................................................................................................... 31 Presenter: Oleg Sedykh .................................................................................................................................................................. 32 Presenter: Mikhail Gerasimov (& Tom Economou) .......................................................................................................... 32 Presenter: Anastasia Kosenkova ............................................................................................................................................... 33 Day 1: Landing Site Session 2: Instruments and Simulations ....................................................... 35 Presenter: Tibor Kremic ................................................................................................................................................................ 35 Presenter: Allan Treiman .............................................................................................................................................................. 36 Presenter: Christian Schröder .................................................................................................................................................... 36 Presenter: Noam Izenberg ............................................................................................................................................................ 37 Presenter: Tibor Kremic ................................................................................................................................................................ 37 Day 1: Landing Site Session 3: What Do We Already Know? .......................................................... 38 Presenter: Larry Esposito ............................................................................................................................................................. 38 Presenter: Tom Economou ........................................................................................................................................................... 39 Presenter: Gilles Berger ................................................................................................................................................................. 39 Day 2: Landing Site Session 4: Landing Site Selection ..................................................................... 40 Presenter: Mikhail Ivanov ............................................................................................................................................................ 40 Presenter: Dimitry Titov ............................................................................................................................................................... 41 Presenter: Mikhail Ivanov ............................................................................................................................................................ 42 Presenter: Tracy Gregg .................................................................................................................................................................