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Stamatios Krimigis | Greek-American Deep Space Exploration and Planetary Scientist

Updated: Oct 26, 2023


George P. Papadellis | SG Head

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In the vast expanse of space, one man's contributions have left an indelible mark on our understanding of the cosmos. Stamatios Krimigis (or Tom Krimigis as he is mostly known in the United States), born in Vrontados village of Chios island, is a Greek-American distinguished scientist and space explorer, Head Emeritus of the Space Department Applied Physics Laboratory at Johns Hopkins University Laurel, Maryland, United States, member of the Academy of Athens, Greece, where he has the Chair of Science of Space, who has dedicated his life to unraveling the mysteries of our solar system and venturing beyond its boundaries. With a career spanning several decades, Krimizis's pioneering work in space research has not only transformed our knowledge of distant worlds but has also inspired generations of aspiring scientists. In this article, we delve into the life, achievements, and enduring legacy of Stamatios Krimizis, a true visionary in the realm of space exploration.

Stamatios Krimigis

Photo by: in the public domain created by NASA (according to Wikimedia Commons)

A Brief Biography

Stamatios Krimizis exhibited an early fascination with space. This innate curiosity led him to pursue a degree in physics and a Ph.D. in space physics. His journey took him to prestigious institutions, where he honed his expertise in space instrumentation and planetary science.

Voyager Missions

Krimizis's momentous achievements came during his tenure at NASA's Jet Propulsion Laboratory (JPL), for the Voyager program. Launched in 1977, the twin Voyager spacecraft were designed to explore the outer planets of our solar system. Krimizis played a pivotal role in developing the scientific instruments onboard Voyager 1 and 2, contributing to the success of the missions. The Voyager spacecraft provided humanity with the first-ever up-close images and data of Jupiter, Saturn, Uranus, and Neptune. Krimizis and his team made groundbreaking discoveries about these gas giants, their moons, and the intricate systems governing their behavior. The Voyager missions reshaped our understanding of the outer solar system and inspired a new era of planetary exploration.

Interstellar Voyager

Following the triumph of the Voyager missions, Stamatios Krimigis continued to push the boundaries of space exploration. He played a crucial role in the development of the Interstellar Voyager mission, an ambitious project aimed at sending a spacecraft beyond the confines of our solar system. The Interstellar Voyager carried a Golden Record, an artifact showcasing the diversity of life on Earth, as a testament to humanity's quest for knowledge and connection with potential extraterrestrial civilizations. Krimigis has contributed to many of the US unmanned space exploration programmes of the Solar System and beyond. He has been member of scientific teams of exploration missions to almost every planet of the Solar System. In 1999, the International Astronomical Union named the asteroid 8323 Krimigis (previously 1979 UH) in his honor.

Continuing Legacy

Apart from his groundbreaking research, Krimizis is a devoted educator and mentor. Throughout his career, he has nurtured countless young minds, fostering the next generation of space scientists and researchers. His passion for sharing knowledge and sparking curiosity has left an enduring impact on the field of space exploration. Krimizis's remarkable journey is a testament to the human spirit of exploration and the insatiable quest for understanding the cosmos. His work serves as a beacon of inspiration for aspiring scientists worldwide, urging them to reach for the stars and explore the unknown.

Success Moments

Stamatios Krimigis has served as Greece’s Alternate Head Delegate to the ESA Council (2006-2010), as Chair of the National Council for Research, Technology and Innovation of Greece (2010 - 2013), as member of the National Academy of Sciences' Space Science Board, as Chairman of the Board's Committee on Solar and Space Physics (1983-1986), and as member of NASA's Space Science. From 1991 to 2004, as Head of the Space Department of the JHU/APL, he directed the work of about 600 scientists, engineers, and other support staff in the design, construction, testing, and launch into space of entire satellites and scientific instruments that perform measurements on a large variety of earth-orbiting and interplanetary missions. As a student of J. A. Van Allen and later on faculty, he built instruments for Mariners 3, 4 (Mars), Injun 4, Injun 5 (Earth), OGO-4 (Earth), Mariner-5 (Venus), and Explorers 33 and 35 (Moon, Anchored IMP). Krimigis' research interests include the Earth's environment, its magnetosphere, the sun, the interplanetary medium, and the magnetospheres of the planets. He has published more than 530 papers in journals and books, he is co-editor of the book Saturn from Cassini-Huygens (2009), he has over 11.000 citations (ISI-web of science) and over 15,000 citations (Google Scholar). Dr. Krimigis has been awarded the NASA Medal for Exceptional Scientific Achievement (1981, 1986, 2014), over forty NASA Group Achievements awards (for Voyager, Galileo, NEAR, Cassini, etc), the ESA group awards for Ulysses and Cassini-Huygens, the International Academy of Astronautics Basic Sciences Award (1994), the COSPAR Space Science Award (2002), the Johns Hopkins Applied Physics Laboratory Lifetime Achievement Award, the Gold Cross "Commandeur de l' Ordre du Phoénix" (1997), the Council of European Aerospace Societies (CEAS Gold Medal), the Honorary Doctorates from the University of the Aegean (2009), the IAA Laurels Award for Team Achievement to leading NASA’S MESSENGER mission to Mercury from the International Academy of Astronautics (2012), the Jean Dominique Cassini Medal from the European Geosciences Union (2014), the James Van Allen Space Environments Award from the American Institute of Aeronautics and Astronautics (2014) and the NASA’s Voyager Silver Achievement Award (2014). He has participated as Member or Chairman in many national and international conferences in space science and space systems management, and has lectured in major conferences and National Academies in all five continents.

Stamatios Krimigis Passion

Stamatios Krimizis's journey from a curious young mind in Greece to a pioneer of space exploration at NASA's Jet Propulsion Laboratory is a testament to the power of passion, perseverance, and scientific ingenuity. His contributions to the Voyager missions and the Interstellar Voyager project have expanded our understanding of the solar system and kindled our collective imagination about what lies beyond. As we continue to unravel the mysteries of the cosmos, Stamatios Krimizis's legacy remains an inspiration for current and future generations of space scientists. Through his tireless dedication and pioneering research, he has shaped our understanding of the universe, leaving an indelible mark on the realm of space exploration.


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Apr 12
Rated 5 out of 5 stars.

Dr. Krimigis spearheaded the establishment of NASA's Discovery program for low-cost planetary missions.... What else?? A legend!


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