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July 8, 2004 - (date of web publication)

Speakers' Biographies

Dr. Edward C. Stone

Edward C. Stone is the David Morrisroe Professor of Physics at the California Institute of Technology (Caltech) and former Director of the Jet Propulsion Laboratory (1991-2001). He has also served as chair of Caltech's Division of Physics, Mathematics, and Astronomy and oversaw the development of the Keck Observatory as Vice President for Astronomical Facilities.

Since 1972, Stone has been the project scientist for the Voyager Mission at the Jet Propulsion Laboratory, coordinating the scientific study of Jupiter, Saturn, Uranus, and Neptune and Voyager’s continuing exploration of the outer heliosphere and search for the edge of interstellar space. Following his first instrument on a Discoverer satellite in 1961, Stone has been a principal investigator on nine NASA spacecraft and a co-investigator on five other NASA missions for which he developed instruments for studying galactic cosmic rays, solar energetic particles, and planetary magnetospheres.

Stone is a member of the National Academy of Sciences and the American Philosophi­cal Society, president of the International Academy of Astronau­tics, and a vice president of COSPAR. Among his awards and honors, Stone received the National Medal of Science from President Bush (1991), the Magellanic Premium from the American Philosophical Society, and Distinguished Service Medals from NASA. In 1996, asteroid (5841) was named after him.

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Dr. Eric Christian

Dr. Christian is the Program Scientist for the Solar Terrestrial Probes (STP) line of strategic missions in the Sun-Earth Connection (SEC) Division at NASA HQ, and the Discipline Scientist for Heliospheric Physics in SEC. The STP line includes TIMED (Thermosphere Ionosphere Mesosphere Energetics and Dynamics) launched in 12/01, Stereo (Solar Terrestrial Relations Observatory, launch in 11/05), Solar-B (launch in 9/06), MMS (Magnetosphere Multiscale, currently in Phase A study), GEC (Geospace Electrodynamic Conneections, in pre-formulation phase), and MagCon (Magnetospheric Constellation, in pre-formulation phase). Dr. Christian is currently the Program Scientist for Voyager, Stereo, ACE, Ulysses, and Wind.

 Dr. Christian received a B.A., cum laude from the University of Pennsylvania in 1982 with majors in honors Physics and Astronomy and a minor in Computer Science Engineering. In 1989, he obtained a PhD in Physics from the California Institute of Technology. After his PhD he spent 14 years working for the Universities Space Research Association (USRA) as a Research Scientist at NASA Goddard Space Flight Center. During this time, he worked on a large variety of balloon-borne and spacecraft cosmic ray instruments and missions including the SIS and CRIS instruments on ACE, HNX, ACCESS, TIGER, Nightglow, and ISOMAX. He was Deputy Project Scientist for the ACE mission. Dr. Christian has received several GSFC Group Achievement Awards, the 1995 USRA Excellence in Scientific Research Award, and the 2002 USRA Community and Educational Outreach Award. Dr. Christian is very active in Education and Public Outreach and regularly talks to school children and the public, as well as keeping an active web-presence for outreach.

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Carl E. Walz

Carl E. Walz is Program Executive for Advanced Concepts, Project Prometheus, at NASA Headquarters in Washington, D.C. Project Prometheus (formerly the Nuclear Systems Initiative) is a program to develop nuclear power and propulsion systems for NASA’s robotic and human exploration missions, such as the Jupiter Icy Moons Orbiter.

Prior to being assigned to NASA Headquarters in August 2003, Walz served in the United States Air Force and was an astronaut at the Johnson Space Center in Houston, Texas. He retired from the United States Air Force in July 2003 after serving 24 years.

PERSONAL DATA: Born Sept. 6, 1955, in Cleveland, Ohio. Married to the former Pamela J. Glady of Lyndhurst, Ohio. They have two children. He enjoys piano, vocal music and sports.

EDUCATION: Graduated from Charles F. Brush High School, Lyndhurst, Ohio, in 1973; received a bachelor of science degree in physics from Kent State University, Ohio, in 1977, and a master of science in solid state physics from John Carroll University, Ohio, in 1979.

ORGANIZATIONS: American Legion, KSU Alumni Association.

SPECIAL HONORS: Graduated Summa Cum Laude from Kent State University. Awarded the Defense Superior Service Medal, the USAF Meritorious Service Medal with one Oak Leaf Cluster, the Defense Meritorious Service Medal with one Oak Leaf, the USAF Commendation Medal, and the USAF Achievement Medal with one Oak Leaf Cluster. Distinguished Graduate from the USAF Test Pilot School, Class 83A. Inducted into the Ohio Veterans Hall of Fame. Awarded three NASA Space Flight Medals, NASA Exceptional Service Medal. Distinguished Alumnus Award, Kent State University, 1997.

EXPERIENCE: From 1979 to 1982, Walz was responsible for analysis of radioactive samples from the Atomic Energy Detection System at the 1155th Technical Operations Squadron, McClellan Air Force Base, California. The subsequent year was spent in study as a Flight Test Engineer at the USAF Test Pilot School, Edwards Air Force Base, California. From January 1984 to June 1987, Walz served as a Flight Test Engineer to the F-16 Combined Test Force at Edwards Air Force Base, where he worked on a variety of F-16C airframe avionics and armament development programs. From July 1987 to June 1990, he served as a Flight Test Manager at Detachment 3, Air Force Flight Test Center.

NASA EXPERIENCE: Selected by NASA in January 1990, Walz is a veteran of four space flights, and has logged 231 days in space. He was a mission specialist on STS-51 (1993), was the Orbiter flight engineer (MS-2) on STS-65 (1994), was a mission specialist on STS-79 (1996), and served as flight engineer on ISS Expedition-Four (2001-2002). Carl Walz and and fellow astronaut Dan Bursch currently hold the U.S. space flight endurance record of 196 days in space.

SPACE FLIGHT EXPERIENCE: STS-51 Discovery (Sept. 12-22, 1993). During the mission, the five member crew deployed the U.S. Advanced Communications Technology Satellite (ACTS), and the Shuttle Pallet Satellite (SPAS) with NASA and German scientific experiments aboard. Walz also participated in a seven-hour space walk (EVA) to evaluate tools for the Hubble Space Telescope servicing mission. The mission was accomplished in 9 days, 22 hours, and 12 minutes.

STS-65 Columbia (July 8-23, 1994). STS-65 flew the second International Microgravity Laboratory (IML-2) spacelab module, and carried a crew of seven. During the 15-day flight the crew conducted more than 80 experiments focusing on materials and life sciences research in microgravity. The mission completed 236 orbits of the Earth, traveling 6.1 million miles, setting a new flight duration record for the Shuttle program.

STS-79 Atlantis (Sept. 16-26, 1996). On STS-79 the six member crew aboard Atlantis docked with the Russian MIR station, delivered food, water, U.S. scientific experiments and Russian equipment, and exchanged NASA long duration crewmembers. During the mission, the Atlantis/Mir complex set a record for docked mass in space. STS-79 was the first flight of the double Spacehab module, and landed at KSC after 10 days 3 hours and 13 minutes.

The Expedition-Four crew launched on Dec. 5, 2001 aboard STS-108 and docked with the International Space Station on Dec. 7, 2001. During a 6-1/2 month stay aboard the Space Station, the Expedition-4 crew of three (two American astronauts and one Russian cosmonaut) performed flight tests of the station hardware, conducted internal and external maintenance tasks, and developed the capability of the station to support the addition of science experiments. The crew spent 196 days in space establishing a U.S. space flight endurance record for Carl Walz and crew mate Dan Bursch. Walz logged 11 hours and 52 minutes of EVA time in two separate spacewalks, one in the Russian Orlan space suit and one in the US space suit. The Expedition-Four crew returned to Earth aboard STS-111, with Endeavour landing at Edwards Air Force Base, Calif., on June 19, 2002.

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Dr. Thomas H. Zurbuchen

Dept. of Atmospheric, Oceanic, and Space Sciences
University of Michigan


Ph.D., Physics (with highest honors), University of Bern, Switzerland, 1996
M.S., Physics, Mathematics, Astronomy (with highest honors), Univ. of Bern, Switzerland, 1992

Positions Held:

Associate Professor, 2003-present
Senior Associate Research Scientist, 2002-2003
Assistant Research Scientist, University of Michigan, 1998-2002
Research Fellow, University of Michigan, 1996-98
Part-time Consultant in Space Industry (Oerlikon Contraves), 1992-94
Teaching Assistant, University of Bern, 1990-96
Awards and Professional Services
Presidential Early Career Award (PECASE), 2004.
Outstanding Research Scientist Award of the Univ. of Michigan College of Engineering, 2002.
Swiss National Science Foundation, Young Researcher Award, 1996-97
Member, American Geophysical Union and the Swiss Society of Astronomy and Astrophysics
Chair and convener of several conferences
Member of NASA Science and Technology Definition Teams


Graduate Level: Solar Terrestrial Relations, Plasma Physics, Space System Design, Space Instrumentation.

Undergraduate Level: Engineering Design Course, Solar Terrestrial Relations
· Has graduated three Ph.D. students, three M.S. students.
· Advises 8 Ph.D. students at various levels.
· Advises ~10 part-time students at the graduate and undergraduate level in research support roles.

Relevant Experience:

Currently leads data center for composition instruments on ACE, Ulysses, and WIND, and develops new space instrumentation. Participated extensively in calibrations of Wind/MASS, ACE/SWICS, and ACE/SWIMS. Led UV-suppression tests for SOHO/CTOF and SOHO/MTOF. Participated in development of Wind/MASS.

Led design and construction of FIPS, a miniaturized mass spectrometer that is part of the MESSENGER payload to Mercury for launch in 2004.

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