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Ernst Messerschmid
Ernst Messerschmid
Ernst Messerschmid
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Ernst Willi Messerschmid (born 21 May 1945) is a German physicist and former astronaut.

Key Information

Biography

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Ernst Messerschmid was born in Reutlingen, Germany, on May 21, 1945. He finished the Technisches Gymnasium in Stuttgart in 1965. After two years of military service he studied physics at the University of Tübingen and Bonn, receiving a Diplom degree in 1972 and doctorate in 1976. From 1970 to 1975 he was also a visiting scientist at the CERN in Geneva, working on proton beams in accelerators and plasmas. From 1975 to 1976 he worked at the University of Freiburg and the Brookhaven National Laboratory (New York), In 1977, he joined DESY in Hamburg to work on the beam optics of the PETRA storage ring.

From 1978 to 1982, he worked at the DFVLR (the precursor of the DLR) in the Institute of Communications Technology in Oberpfaffenhofen on space-borne communications. In 1983, he was selected as one of the astronauts for the first German Spacelab mission D-1. He flew as a payload specialist on STS-61-A in 1985, spending over 168 hours in space.

After his spaceflight he became a professor at the Institut für Raumfahrtsysteme at the University of Stuttgart. From 2000 to 2004, he was head of the European Astronaut Centre in Cologne. In January 2005, he returned to the University of Stuttgart teaching on subjects of Astronautics and Space Stations.

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Ernst Messerschmid

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Ernst Messerschmid is a German physicist and former astronaut known for his participation as a payload specialist on the Spacelab D1 mission aboard Space Shuttle Challenger in 1985, contributing to Germany's early human spaceflight efforts. Born on May 21, 1945, in Reutlingen, Germany, he pursued physics at the Universities of Tübingen and Bonn, earning his doctorate from the University of Freiburg in 1976 with a thesis on relativistic proton beams. His early career included research positions at CERN and DESY before joining the German Aerospace Center (DLR) in 1978, where he worked on satellite systems. Selected as a science astronaut by DLR in 1982, Messerschmid completed training and flew on STS-61-A (Spacelab D1) from October 30 to November 6, 1985, conducting scientific experiments in materials science, life sciences, and other fields during the seven-day mission. Following his spaceflight, he became a professor of astronautics at the University of Stuttgart in 1986, later serving as director of the Institute of Space Systems, dean of the aerospace faculty, and vice-president of the university. He headed the European Astronaut Centre in Cologne from 2000 to 2004 before returning to his professorship at Stuttgart. Messerschmid has made significant contributions to space education, research infrastructure, and international cooperation in astronautics throughout his post-flight career. His work helped advance Germany's role in human space exploration and scientific utilization of space platforms.

Early life and education

Birth and early years

Ernst Messerschmid was born on 21 May 1945 in Reutlingen, Germany. Reutlingen is located in the state of Baden-Württemberg, where he spent his early years. He graduated from the Technisches Gymnasium in Stuttgart in 1965. Details about his family background, parents' professions, or specific early schooling remain limited in public records, with no documented indications of particular formative experiences influencing his later interest in science during this period. He later pursued university studies in Tübingen and Bonn.

Academic background and degrees

Ernst Messerschmid studied physics at the University of Tübingen and the University of Bonn from 1967 to 1972. He earned his diploma in physics in 1972. After graduating, he worked as a CERN Fellow from 1972 to 1975 and as a research assistant at the University of Freiburg, where he received his doctorate in physics in 1976. His doctoral thesis was on "Longitudinal Instabilities of Relativistic Proton Beams in Synchrotrons".

Early scientific career

Research positions and work at CERN

After receiving his diploma in physics from the University of Bonn in 1972 (having studied at the Universities of Tübingen and Bonn), Ernst Messerschmid worked as a CERN Fellow in Geneva from 1972 to 1975. His research during this period focused on particle accelerators, specifically the behavior of relativistic proton beams and related phenomena at the Intersecting Storage Rings (ISR), laying the foundation for his doctoral research. From 1975 to 1976, he served as a research assistant at the University of Freiburg, where he prepared and defended his doctoral thesis in 1976 titled "Untersuchungen der longitudinalen Instabilität von relativistischen Protonenstrahlen in Kreisbeschleunigern" (Investigations of the longitudinal instability of relativistic proton beams in circular accelerators). In 1977, Ernst Messerschmid joined DESY (Deutsches Elektronen-Synchrotron) in Hamburg as a researcher, where he worked on beam optics for the PETRA electron storage ring. During this period, he developed an interest in space technology and participated as a German candidate in the first ESA astronaut selection campaign (though not selected). This marked his transition from accelerator-based research to applied space-related work, leading to his move in 1978 to the German Aerospace Center (then DFVLR) in Oberpfaffenhofen, where he began working on satellite-based communication systems.

Astronaut selection and training

Selection process in 1977

In 1977, Ernst Messerschmid became aware of the emerging opportunities for European scientists to participate as payload specialists in the Spacelab program, a cooperative venture between the European Space Agency (ESA) and NASA to enable reusable scientific research in microgravity aboard the Space Shuttle. While working as a research assistant at the University of Freiburg after completing his doctorate, he heard a radio interview with a prominent space medicine specialist outlining the personal and professional qualities sought in astronaut candidates, which sparked his interest in applying when the formal selection was announced nationally in Germany. The German Ministry of Research and Technology (BMFT), in coordination with the DFVLR (predecessor to the DLR), managed the national selection process as part of Germany's significant contributions to the Spacelab initiative, which included hardware development and funding for dedicated missions. This competition drew over 1000 applicants from scientific and engineering fields, with candidates evaluated on criteria such as advanced scientific expertise, physical and psychological suitability for spaceflight, and the potential to perform complex orbital experiments. Messerschmid progressed to the final stages, ranking among the last five shortlisted candidates in the German national round. This early involvement positioned him for later assignment as a payload specialist on a German-led Spacelab mission.

Preparation for Spacelab missions

Following his selection in 1983 by the DFVLR (now DLR) as a research astronaut, Ernst Messerschmid underwent two years of comprehensive preparation specifically for the Spacelab D1 mission. This training program included science training at various universities and industrial laboratories in Germany, basic astronaut training at the DFVLR facility in Cologne, and mission-specific training at NASA's Johnson Space Center in Houston. The preparation focused on equipping him as a payload specialist to conduct microgravity experiments in the Spacelab module, with training covering experiment protocols, payload operations, and essential spaceflight skills such as medical aspects and introduction to orbital environments. Training activities took place primarily at German facilities including the DLR Institute for Space Simulation, supplemented by international collaboration with NASA for shuttle-related and mission-tailored components. Messerschmid was assigned as a primary payload specialist for the D1 mission, working alongside fellow German payload specialist Reinhard Furrer.

Spaceflight career

STS-61-A / Spacelab D1 mission

Ernst Messerschmid served as a payload specialist on STS-61-A, the Spacelab D1 mission aboard the Space Shuttle Challenger. This flight marked the first Spacelab mission funded and largely organized by West Germany, featuring a comprehensive suite of scientific experiments conducted in microgravity. Messerschmid, along with fellow German payload specialist Reinhard Furrer, represented West Germany's primary scientific contribution to the mission. The mission launched on October 30, 1985, from Kennedy Space Center's Launch Complex 39A and landed successfully on November 6, 1985, at Edwards Air Force Base in California. The flight duration was 7 days, 0 hours, 44 minutes, and 51 seconds, during which the shuttle completed 112 orbits of Earth. The crew of eight consisted of Commander Henry W. Hartsfield, Jr., Pilot Steven R. Nagel, Mission Specialists Bonnie J. Dunbar, James F. Buchli, and Guion S. Bluford, and Payload Specialists Reinhard Furrer, Ernst Messerschmid, and Wubbo Ockels. This made it the largest crew ever assembled for a shuttle mission at that time. The Spacelab D1 module carried approximately 75 experiments, focused primarily on materials science, life sciences, and fluid physics under microgravity conditions. Messerschmid participated actively in experiments related to fluid physics and materials science, including studies on fluid behavior, crystal growth, and metallurgical processes in the absence of gravity. These investigations aimed to advance understanding of fundamental physical phenomena and their potential applications in industrial processes.

Mission outcomes and contributions

The STS-61-A mission, conducted aboard the Space Shuttle Challenger from October 30 to November 6, 1985, with Ernst Messerschmid serving as a payload specialist, was classified as a successful Spacelab flight upon completion. Approximately 95% of the mission's objectives were achieved despite initial technical challenges in the first few days, including a leak that risked early termination and sensor problems in the space furnace. Out of 75 numbered experiments, 12 required in-flight repairs to proceed, and the crew compensated for early inefficiencies by working extended shifts of 16–18 hours per day. The mission represented the most comprehensive series of microgravity experiments conducted to date, spanning materials science (with a primary focus), fluid physics, solidification processes, single crystal growth, composites, life sciences, human physiology, and vestibular research. It generated a large volume of scientific data that required years of analysis, yielding significant results in understanding gravity's influence on physical and biological processes. Messerschmid later reflected that some findings altered established knowledge, stating, “Some of our results changed the textbooks. We learned a lot about the relevance of gravity on Earth as a whole and the changes as we go into space,” and noted that results in areas such as solidification, diffusion, and crystal growth influenced improved production techniques on Earth. The Spacelab D1 mission demonstrated Germany's strong capability in microgravity materials science research and marked a major advancement in Europe's autonomous scientific use of human spaceflight systems, while strengthening the German Space Operations Center and building experience within the European microgravity research community. Messerschmid emphasized the creation and reinforcement of a user community for human spaceflight missions, which later supported Europe's near-equal partnership in the International Space Station program and enabled high-quality science on the ISS. He expressed pride in the flight's performance, noting, “I’m very proud of our flight, because we did what was expected,” and highlighted the intense responsibility felt toward the scientists on the ground whose experiments depended on obtaining sufficient data.

Post-space academic and professional career

Professorship and institute leadership

After his return from the STS-61-A Spacelab D1 mission, Ernst Messerschmid resumed his academic career by accepting a professorship at the University of Stuttgart in November 1986. He was appointed to the Chair of Astronautics and Space Stations, where his prior experience as an astronaut informed his contributions to teaching and research in human spaceflight-related fields. In parallel with his professorship, Messerschmid served as Director of the Institute of Space Systems (IRS) at the University of Stuttgart from 1986 to 1999, leading institutional efforts in space technology development and education. His academic work emphasized space station systems and their utilization, transfer vehicles for missions to the Moon, asteroids, and Mars, high-temperature problems associated with reusable space transportation systems, and safety aspects of spaceflight operations.

Later roles and activities

In 2000, Ernst Messerschmid took leave from his university position to serve as Head of the European Astronaut Centre (EAC) in Cologne, Germany, a key facility of the European Space Agency (ESA) responsible for astronaut training, operations support, and coordination of human spaceflight activities for ESA member states. He held this leadership role until 2004, after which he returned to the University of Stuttgart in January 2005 to resume his professorship in Astronautics and Space Stations at the Institute of Space Systems (IRS). Messerschmid retired in November 2013. His retirement was marked by a ceremonial colloquium on 8 November 2013 at the Space Centre Baden-Württemberg (RZBW), organized by the Institute of Space Systems, where colleagues recognized his contributions to space research and education. Following retirement, he is listed as former Professor of Astronautics and Space Stations at the University of Stuttgart.

Media appearances and public engagement

Television and documentary credits

Ernst Messerschmid has appeared as himself in various German television programs, typically as a guest interviewee discussing his astronaut experiences, space science, and related topics. These appearances, documented primarily through public broadcast credits, reflect his role as a public figure following the STS-61-A mission and span talk shows, magazine formats, and educational programs aimed at diverse audiences. One prominent appearance was on the talk show Alpha Forum in 1998. He also featured on the late-night discussion program Nachtcafé in 2011 and on youth-oriented shows such as Tigerenten Club in 2003 and Disney Club in 1995. Additional credits include an episode of Menschen der Woche in 2005 and three episodes of the regional magazine program Landesschau between 2010 and 2014. While no major feature-length international documentaries credit him as a principal interviewee, he has contributed to shorter retrospective segments and interviews, including anniversary reflections on the D1 mission broadcast or published online.

Outreach and publications

Messerschmid has contributed to science communication through publications that explain space technologies and their applications. He co-authored the book Space Stations: Systems and Utilization with Reinhold Bertrand, published by Springer in 1999. The book details component technologies, system integration, and potential uses of space stations, with emphasis on research, applications, and commercial opportunities associated with the International Space Station. This technical work reflects his efforts to disseminate knowledge on space infrastructure beyond specialized research communities. As part of his broader outreach, Messerschmid has participated in public lectures and science communication activities to share insights from his spaceflight experiences and promote interest in microgravity research and space exploration.

Awards, honors, and legacy

Major recognitions

Ernst Messerschmid has received numerous prestigious awards and honors in recognition of his contributions to spaceflight, scientific research, and aerospace education. Early in his career, he was awarded the Science Award of the Wissenschaftliche Gesellschaft in Freiburg im Breisgau in 1976 for his work in physics. Following his participation in the STS-61-A Spacelab D1 mission, Messerschmid received the NASA Space Flight Medal in 1985 and the NASA Flight Achievement Award in 1986. During the post-flight tour, he and his crewmates were also presented with an honorary award from the Royal Dutch Academy of Sciences. He has been a member of the Dutch Royal Academy of Science since 1985. In 1985, the German government awarded him the Cross of Merit, First Class of the Order of Merit of the Federal Republic of Germany (Bundesverdienstkreuz 1. Klasse) for his role as a scientist-astronaut. In 1986, he received the Medal of Merit of the Federal State of Baden-Württemberg. In 2016, the German Society for Aeronautics and Astronautics (DGLR) honored him with the 24th Eugen-Sänger-Medaille for his outstanding lifetime achievements in aerospace sciences and astronautics.

Impact and influence

Ernst Messerschmid's involvement in the Spacelab D1 mission represented a pivotal advancement for the German space program, as it was the first Spacelab flight conducted under full German mission management and responsibility, with payload control handled from the German Space Operations Center in Oberpfaffenhofen rather than NASA facilities. This achievement demonstrated Germany's capacity to lead complex human spaceflight operations and strengthened its position within the European Space Agency framework. The mission's operational model influenced subsequent European efforts by showcasing effective ground-orbit collaboration and national oversight of scientific payloads. The 76 experiments conducted during D1, spanning materials science, fluid physics, life sciences, biology, medicine, and navigation, constituted one of the most comprehensive series of microgravity investigations at the time and produced a substantial body of data that enriched scientific understanding of weightless conditions. These results contributed to foundational knowledge in areas such as materials processing and human physiology in space, supporting later developments in European microgravity research and utilization of platforms like the International Space Station. Messerschmid's post-flight career amplified his influence through leadership and education roles. As Head of ESA's European Astronaut Centre from 2000 to 2004, he oversaw astronaut training programs critical to Europe's human spaceflight activities. Since 1986 he has served as Professor and Director of the Institute of Space Systems at the University of Stuttgart, where he has taught astronautics, space stations, and related disciplines, while also lecturing candidate astronauts on space systems engineering and serving on German astronaut selection committees. He has described this phase as becoming a "missionary" for science and innovation, actively promoting the value of space exploration to inspire students, researchers, and future space professionals. His sustained academic and institutional contributions have helped cultivate expertise and interest in space systems among subsequent generations in Germany and across Europe.
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