Peter D. Bedini
Project Manager

Peter Bedini oversees MESSENGER's overall operation, reporting directly to the Principal Investigator and the NASA Discovery Program Office on MESSENGER's technical, schedule, and programmatic status. He previously served as Deputy Project Manager for the New Horizons and MESSENGER missions and as Project Manager for the Compact Reconnaissance Imaging Spectrometer for Mars onboard the Mars Reconnaissance Orbiter. Prior to joining JHU/APL in 2000, he spent nearly 20 years developing, testing, and operating space-flight instruments on a number of NASA missions.

David G. Grant
Senior Management Advisor

David Grant served as Project Manager for MESSENGER for nearly five years. During that time, he oversaw the development, integration, test, and launch of the spacecraft and subsequent mission operations, including the Earth flyby and two Venus flybys. In his current role he provides management support for the MESSENGER project and Project Manager. He currently serves as Project Manager for the Thermosphere, Ionosphere, Mesosphere, Energetics, and Dynamics mission and has managed several other satellite projects for JHU/APL, including the Polar Bear upper-atmosphere research mission.

Eric J. Finnegan
Mission Systems Engineer

Eric Finnegan is responsible for all technical aspects of the MESSENGER mission to Mercury. Prior to joining JHU/APL in 2004, he worked at NASA Goddard Space Flight Center and was the Missions Systems Engineer and Project Technologist for the Space Technology 5 Project, part of the New Millennium Program. His considerable experience includes support of the Geostationary Operational Environmental Satellites Program, the Defense Satellite Communications System, the Solar Radiation and Climate Experiment, Cassini, and Re-entry Vehicles.

Ralph L. McNutt, Jr.
Project Scientist

Ralph McNutt, at JHU/APL since 1992, has been involved in a broad range of space physics research. He is a pioneer in solar neutrino research. On MESSENGER, he serves as the Principal Investigator's "right hand man" in assuring that the spacecraft, mission design, and experiment plan answer all six of the major science questions being investigated by the project.

Deborah L. Domingue
Deputy Project Scientist

Deborah Domingue, at JHU/APL since 1997, is a planetary astronomer whose scientific career has focused on the study of planetary surfaces using ground-based telescopes, orbiting telescopes, and spacecraft images. She was a member of the imaging/spectroscopy team on the Near Earth Asteroid Rendezvous mission. On MESSENGER, she serves as the Science Planning Group Coordinator and the Deputy Project Scientist and is responsible for the planning and acquisition of MESSENGER's scientific data set.

Brian Anderson
Deputy Project Scientist

Brian Anderson, Deputy Project Scientist for MESSENGER, oversees the orbital operations planning to ensure that observations from all of the instruments are coordinated to meet the mission objectives. His research areas include the dynamics of space plasmas and planetary magnetic fields. At JHU/APL since 1988, he served as Magnetometer Instrument Scientist on the Near Earth Asteroid Rendezvous mission and currently fulfills that role on MESSENGER as well.

Robert E. Gold
Science Payload Manager

Robert Gold has been at JHU/APL since 1975 and is currently the Assistant Branch Supervisor for Space Engineering and Technology. He has been involved in a wide variety of space physics and technology projects and was responsible for development of the instrument payload on the Near Earth Asteroid Rendezvous mission. On MESSENGER he leads the engineering implementation of the science instrumentation to optimize its reliability and performance within mass, power, and cost constraints.

Stephen S. Jaskulek
Payload System Engineer

Stephen Jaskulek, at JHU/APL since 1981, heads the Enabling Technologies Section of the Lab's Space Instrumentation Group and is a leader for application specific integrated circuit development. He has extensive experience in the design, fabrication, testing, and integration of space instrumentation. On MESSENGER, he is responsible for coordinating the technical and interface issues between the spacecraft and payload teams.

Andrew B. Calloway
Mission Operations Manager

Andy Calloway has over 14 years experience in space mission operations and ground system development efforts. He began his career supporting multiple commercial and international geosynchronous communications satellite launches and operations. He then spent six years supporting the Tropical Rainfall Measuring Mission, a low Earth orbiting Earth resources satellite, at NASA Goddard Space Flight Center, where he spent the last four years as the technical operations lead. He has been a member of the MESSENGER operations team since he joined JHU/APL in 2002.

Mark E. Holdridge
Critical Event Operations Manager

Mark Holdridge has over 20 years experience as a leader of space mission operations and ground system development efforts. His experience has included development and support for a diverse set of spacecraft missions including low Earth orbiting Earth resources satellites, geosynchronous weather and communications satellites, and planetary missions. As Mission Operations Manager for the Near Earth Asteroid Rendezvous mission, he pioneered the development of low risk and low cost operational methodologies for the first mission to orbit and land on an asteroid. He played a key role in the development of JHU/APL's Space Mission Operations Standards.

James V. McAdams
Mission Design Lead Engineer

James McAdams, at JHU/APL since 1994, has participated in NASA solar system exploration missions since the early 1980s. His work throughout all phases of the Near Earth Asteroid Rendezvous and MESSENGER missions has helped JHU/APL to become a leader in the planning and implementation of planetary exploration missions. On MESSENGER, he designs the trajectory and propulsive maneuvers that enable fulfillment of science objectives with minimum risk to spacecraft safety.

Stephanie A. Stockman
Education/Public Outreach Project Manager and Team Lead

Stephanie Stockman has been with Science Systems and Applications, Inc., since 1993, first as a Mars researcher and then as an education and outreach specialist. She was the education coordinator for the NASA Goddard Space Flight Center Laboratory for Terrestrial Physics and currently leads the Education and Public Outreach efforts of the NASA Earth Observing System satellite Aura, the Lunar Reconnaissance Orbiter, and formal education for New Horizons mission, in addition to MESSENGER.