VEXAG Committee
Co-chairs
Sanjay Limaye
University of Wisconsin, Madison, Wisconsin
Suzanne Smrekar
JPL, Pasadena, California
Focus Groups
Mark Allen
VEXAG Focus Group Lead for Laboratory Measurements
JPL, Pasadena, California
Kevin Baines
Focus Group Lead for Atmospheric Evolution
JPL, Pasadena, California
James Cutts
Focus Group Lead for Venus Exploration Technologies
JPL, Pasadena, California
David Grinspoon
VEXAG Focus Group Lead for Venus-Earth Climate Connections
Denver Museum of Nature and Science
Lori Glaze
Focus Group Lead for Planetary Formation and Evolution
Goddard Space Flight Center, Greenbelt, Maryland
Adriana Ocampo
Ex Officio, Venus Program Executive
NASA Headquarters, Washington D.C.
In addition to interested members of the scientific community, each focus group will include technology experts, NASA representatives, international partner representatives, EPO experts, and the chair. The current focus groups and their leads are listed above. Other focus groups may be added, as needed.
Supporting members of the VEXAG Executive Committee
Tibor Balint
JPL, Pasadena, California
Mark Bullock
Southwest Research Institute, Boulder, Colorado
Larry Esposito
Laboratory for Atmospheric and Space Physics, University of Colorado
Jim Garvin
Goddard Space Flight Center, Greenbelt, Maryland
Ronna Hurd
Lunar and Planetary Institute, Houston, TexasNatasha Johnson
Goddard Space Flight Center, Greenbelt, MarylandDavid Senske
JPL, Pasadena, CaliforniaTommy Thompson
JPL, Pasadena, CaliforniaAllan Treiman
Lunar and Planetary Institute, Houston, Texas
Past VEXAG Co-Chairs (in chronological order)
Janet Luhmann
University of California, Berkeley, CaliforniaSushil Atreya
University of Michigan, Ann Arbor, MichiganEllen Stofan
Proxemy, Inc.
Steve Mackwell served as Focus Group Lead for Planetary Formation and Evolution since VEXAG was formed in 2005 until spring 2009. Janet Luhmann, and Sushil Atreya, served as VEXAG Co-Chairs since VEXAG was formed in 2005 until November 2009. Ellen Stofan served as VEXAG Chair from November 2007 until spring 2009.
NASA and LPI contacts:
Dr. Adriana Ocampo, NASA Headquarters
Dr. Thomas W. Thompson, NASA/JPL
Dr. Steve Mackwell, LPI


