Venus Science and Technology Definition Team (STDT) Members Chair: Mark A. Bullock Southwest Research Institute, Boulder, CO, USA Co-Chair: David Senske Jet Propulsion Laboratory, Pasadena, CA, USA Atmosphere Sub-Group of the STDT David H. Grinspoon, (Lead) Denver Museum of Nature and Science, Denver, CO, USA Eric Chassefiere, Service d’Aeronomie, Paris, France Anthony Colaprete, NASA / Ames Research Center, Mountain View, CA, USA George L. Hashimoto, Kobe University, Japan Sanjay S. Limaye, University of Wisconsin, Madison, WI, USA Hakan Svedhem, ESA, Noordwijk, Netherlands Dimitri V. Titov, Max Planck Institute for Solar System Research, Germany Mikhail Y. Marov, Keldysh Institute of Applied Mathematics, Moscow, Russia Geochemistry Sub-Group of the STDT Allan H. Treiman, (Lead) Lunar and Planetary Institute, Houston, TX, USA Natasha Johnson, NASA / Goddard Space Flight Center, Greenbelt, MD, USA Steve J. Mackwell, Lunar and Planetary Institute, Houston, TX, USA Geology and Geophysics Sub-Group of the STDT Dave A. Senske, (Lead) Jet Propulsion Laboratory, Pasadena, CA, USA Bruce A. Campbell, Smithsonian Institution, Washington, DC, USA Lori Glaze, NASA/Goddard Space Flight Center, Greenbelt, MD, USA Jim W. Head, Brown University, Providence, Rhode Island, USA Walter S. Kiefer, Lunar and Planetary Institute, Houston, TX, USA Gerald Schubert, University of California at Los Angeles, CA, USA Technology Sub-Group of the STDT Elizabeth A. Kolawa, (Lead) Jet Propulsion Laboratory, Pasadena, CA, USA Steve Gorevan, Honeybee Robotics, New York, NY, USA Gary Hunter, NASA / Glenn Research Center, Cleveland, USA Viktor V. Kerzhanovich, Jet Propulsion Laboratory, Pasadena, CA, USA Ex Officio Ellen R. Stofan, VEXAG Chair & Proxemy Research, Virginia, USA Tibor Kremic, NASA / Glenn Research Center, Cleveland, USA JPL Venus Flagship Mission Architecture Study Team Jeffery L. Hall, (Study Lead) Jet Propulsion Laboratory, Pasadena, CA, USA Tibor S. Balint, (Mission Lead) Jet Propulsion Laboratory, Pasadena, CA, USA Craig E. Peterson, Jet Propulsion Laboratory, Pasadena, CA, USA Tom Spilker, Jet Propulsion Laboratory, Pasadena, CA, USA Alexis C. Benz, Jet Propulsion Laboratory, Pasadena, CA, USA Johnny H. Kwok, (Phase 1 Study Lead) Jet Propulsion Laboratory, Pasadena, CA, USA Team X Design Team, Jet Propulsion Laboratory, Pasadena, CA, USA NASA and JPL James A. Cutts, Jet Propulsion Laboratory, Pasadena, CA, USA Adriana C. Ocampo, NASA HQ, Washington, DC, USA