Hermann Oberth
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Hermann Julius Oberth (; 25 June 1894 – 28 December 1989) was an
Austro-Hungarian Austria-Hungary, also referred to as the Austro-Hungarian Empire, the Dual Monarchy or the Habsburg Monarchy, was a multi-national constitutional monarchy in Central Europe between 1867 and 1918. A military and diplomatic alliance, it consist ...
-born German physicist and rocket pioneer of Transylvanian Saxon descent. Oberth supported
Nazi Germany Nazi Germany, officially known as the German Reich and later the Greater German Reich, was the German Reich, German state between 1933 and 1945, when Adolf Hitler and the Nazi Party controlled the country, transforming it into a Totalit ...
's war effort and received the War Merit Cross (1st Class) in 1943.''''


Early life

Oberth was born into a Transylvanian Saxon family in Nagyszeben (Hermannstadt),
Kingdom of Hungary The Kingdom of Hungary was a monarchy in Central Europe that existed for nearly a millennium, from 1000 to 1946 and was a key part of the Habsburg monarchy from 1526-1918. The Principality of Hungary emerged as a Christian kingdom upon the Coro ...
(today
Sibiu Sibiu ( , , , Hungarian: ''Nagyszeben'', , Transylvanian Saxon: ''Härmeschtat'' or ''Hermestatt'') is a city in central Romania, situated in the historical region of Transylvania. Located some north-west of Bucharest, the city straddles th ...
in
Romania Romania is a country located at the crossroads of Central Europe, Central, Eastern Europe, Eastern and Southeast Europe. It borders Ukraine to the north and east, Hungary to the west, Serbia to the southwest, Bulgaria to the south, Moldova to ...
); and besides his native
German German(s) may refer to: * Germany, the country of the Germans and German things **Germania (Roman era) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizenship in Germany, see also Ge ...
, he was fluent in Hungarian and Romanian as well. At the age of 11, Oberth's interest in rocketry was sparked by the novels of
Jules Verne Jules Gabriel Verne (;''Longman Pronunciation Dictionary''. ; 8 February 1828 – 24 March 1905) was a French novelist, poet and playwright. His collaboration with the publisher Pierre-Jules Hetzel led to the creation of the ''Voyages extraor ...
, especially ''
From the Earth to the Moon ''From the Earth to the Moon: A Direct Route in 97 Hours, 20 Minutes'' () is an 1865 novel by Jules Verne. It tells the story of the Baltimore Gun Club, a post-American Civil War society of weapons enthusiasts, and their attempts to build an en ...
'' and '' Around the Moon''. He was fond of reading them over and over until they were engraved in his memory. As a result, Oberth constructed his first
model rocket A model rocket is a small rocket designed to reach low altitudes (e.g., for a model) and #Model rocket recovery methods, be recovered by a variety of means. According to the United States National Association of Rocketry, National Associati ...
as a school student at the age of 14. In his youthful experiments, he arrived independently at the concept of the
multistage rocket A multistage rocket or step rocket is a launch vehicle that uses two or more rocket ''stages'', each of which contains its own engines and propellant. A ''tandem'' or ''serial'' stage is mounted on top of another stage; a ''parallel'' stage is ...
. During this time, however, he lacked the resources to put his ideas into practice. In 1912, Oberth began studying medicine in
Munich Munich is the capital and most populous city of Bavaria, Germany. As of 30 November 2024, its population was 1,604,384, making it the third-largest city in Germany after Berlin and Hamburg. Munich is the largest city in Germany that is no ...
,
Germany Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen States of Germany, constituent states have a total popu ...
, but after
World War I World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
broke out, he was drafted into the
Imperial German Army The Imperial German Army (1871–1919), officially referred to as the German Army (), was the unified ground and air force of the German Empire. It was established in 1871 with the political unification of Germany under the leadership of Kingdom o ...
, assigned to an infantry battalion, and sent to the Eastern Front against
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. In 1915, Oberth was moved into a medical unit at a hospital in Segesvár (German: Schäßburg; Romanian: Sighișoara),
Transylvania Transylvania ( or ; ; or ; Transylvanian Saxon dialect, Transylvanian Saxon: ''Siweberjen'') is a List of historical regions of Central Europe, historical and cultural region in Central Europe, encompassing central Romania. To the east and ...
, in Austria-Hungary (today Romania). There he found the spare time to conduct a series of experiments concerning
weightlessness Weightlessness is the complete or near-complete absence of the sensation of weight, i.e., zero apparent weight. It is also termed zero g-force, or zero-g (named after the g-force) or, incorrectly, zero gravity. Weight is a measurement of the fo ...
, and later resumed his rocketry designs. By 1917, he showed designs of a missile using liquid propellant with a range of to Hermann von Stein, the
Prussian Minister of War The Prussian Ministry of War was the highest state authority of the Prussian Army, Royal Prussian Army and was responsible for the central administration of the army of the Kingdom of Prussia and, later, the Imperial German Army. The ministry e ...
.''Mort de Hermann Oberth, pionnier de la conquête spatiale'' ("The Death of Hermann Oberth, Space Conquest Pioneer"), in ''
Le Monde (; ) is a mass media in France, French daily afternoon list of newspapers in France, newspaper. It is the main publication of Le Monde Group and reported an average print circulation, circulation of 480,000 copies per issue in 2022, including ...
'', 1 January 1990, pp. 3, 16, accessed on 7 October 2006.
On 6 July 1918, Oberth married Mathilde Hummel, with whom he had four children. Among Oberth's children, one lost his life as a soldier during
World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
. His daughter, Ilse (born 1924), died on August 28, 1944, in an accidental explosion at the Redl-Zipf V-2 rocket engine test facility and liquid oxygen plant where she worked as a rocket technician. In 1919, Oberth once again moved to Germany, this time to study physics, initially in Munich and later at the
University of Göttingen The University of Göttingen, officially the Georg August University of Göttingen (, commonly referred to as Georgia Augusta), is a Public university, public research university in the city of Göttingen, Lower Saxony, Germany. Founded in 1734 ...
. In 1922, Oberth's proposed doctoral dissertation on rocket science was rejected as "utopian". However, professor Augustin Maior of the University of Cluj in Romania offered Oberth the opportunity to defend his original dissertation there in order to receive a doctorate. He did so successfully on 23 May 1923. He next had his 92-page work published privately in June 1923 as the somewhat controversial book, ''Die Rakete zu den Planetenräumen'' (''The Rocket into Planetary Space''). By 1929, Oberth had expanded this work to a 429-page book titled ''Wege zur Raumschiffahrt'' (''Ways to Spaceflight''). Oberth commented later that he made the deliberate choice not to write another doctoral dissertation. He wrote, "I refrained from writing another one, thinking to myself: Never mind, I will prove that I am able to become a greater scientist than some of you, even without the title of Doctor.""Hermann Oberth, Father of Space Travel", at
. Kiosek.com (29 December 1989). Retrieved on 2015-06-27.
Oberth criticized the German system of education, saying "Our educational system is like an automobile which has strong rear lights, brightly illuminating the past. But looking forward, things are barely discernible." Oberth became in 1927 a member of the ''
Verein für Raumschiffahrt The Verein für Raumschiffahrt ("''VfR''", ) was a German amateur rocket association prior to World War II that included members outside Germany. The first successful VfR test firing with liquid fuel (five minutes) was conducted by Max Valier a ...
'' (VfR) – the "Spaceflight Society" – an amateur rocketry group that had taken great inspiration from his book, and Oberth acted as something of a mentor to the enthusiasts who joined the Society, which included persons such as
Wernher von Braun Wernher Magnus Maximilian Freiherr von Braun ( ; ; 23 March 191216 June 1977) was a German–American aerospace engineer and space architect. He was a member of the Nazi Party and '' Allgemeine SS'', the leading figure in the development of ...
, Rolf Engel, Rudolf Nebel or Paul Ehmayr. Oberth lacked the opportunities to work or to teach at the college or university level, as did many well-educated experts in the physical sciences and engineering in the time period of the 1920s through the 1930s – with the situation becoming much worse during the worldwide
Great Depression The Great Depression was a severe global economic downturn from 1929 to 1939. The period was characterized by high rates of unemployment and poverty, drastic reductions in industrial production and international trade, and widespread bank and ...
that started in 1929. Therefore, from 1924 through 1938, Oberth supported himself and his family by teaching
physics Physics is the scientific study of matter, its Elementary particle, fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. "Physical science is that department of knowledge whi ...
and
mathematics Mathematics is a field of study that discovers and organizes methods, Mathematical theory, theories and theorems that are developed and Mathematical proof, proved for the needs of empirical sciences and mathematics itself. There are many ar ...
at the Stephan Ludwig Roth High School in
Mediaș Mediaș (; , , Transylvanian Saxon dialect, Transylvanian Saxon: ''Medwesch''/''Medveš''/''Medwisch'', ) is the second largest municipiu, town and municipality in Sibiu County, Transylvania, central Romania. Geography Mediaș is located in ...
, Romania.


Rocketry and spaceflight

During portions of 1928 and 1929, Oberth served as a scientific advisor in Berlin for the film " Frau im Mond" ("The Woman in the Moon"). This pioneering film was directed and produced by the renowned filmmaker
Fritz Lang Friedrich Christian Anton Lang (; December 5, 1890 – August 2, 1976), better known as Fritz Lang (), was an Austrian-born film director, screenwriter, and producer who worked in Germany and later the United States.Obituary ''Variety Obituari ...
, in collaboration with the
Universum Film AG UFA GmbH, shortened to UFA (), is a film and television production company that unites all production activities of the media conglomerate Bertelsmann in Germany. The original UFA was established as on December 18, 1917, as a direct response t ...
company. The film was of enormous value in popularizing the ideas of rocketry and
space exploration Space exploration is the process of utilizing astronomy and space technology to investigate outer space. While the exploration of space is currently carried out mainly by astronomers with telescopes, its physical exploration is conducted bo ...
. One of Oberth's main assignments was to build and launch a rocket as a publicity event just before the film's premiere. He also designed the model of the '' Friede'', the main rocket portrayed in the film. On June 5, 1929, Oberth won the inaugural Prix REP-Hirsch (''REP-Hirsch Award'') from the French Astronomical Society. This honor recognized his significant contributions to the field of astronautics and interplanetary travel, specifically highlighted in his book ''Wege zur Raumschiffahrt'' ("Ways to Spaceflight"). The book, an expanded version of ''Die Rakete zu den Planetenräumen'' ("The Rocket to Interplanetary Space"), secured his position as a prominent figure in the field. The volume is dedicated to
Fritz Lang Friedrich Christian Anton Lang (; December 5, 1890 – August 2, 1976), better known as Fritz Lang (), was an Austrian-born film director, screenwriter, and producer who worked in Germany and later the United States.Obituary ''Variety Obituari ...
and Thea von Harbou. Oberth's student
Max Valier Max Valier (9 February 1895 – 17 May 1930) was an Austrian rocketry pioneer. He was a leading figure in the world's first large-scale rocket program, Opel-RAK, and helped found the German ''Verein für Raumschiffahrt'' (VfR – "Spacefligh ...
joined forces with
Fritz von Opel Fritz Adam Hermann von Opel (4 May 1899 – 8 April 1971), known as Fritz Adam Hermann Opel until his father was ennobled in 1917, was the only son of Wilhelm von Opel and a grandson of Adam Opel, founder of the Opel company. He is remembered m ...
to create the world's first large-scale experimental rocket program Opel-RAK, leading to speed records for ground and rail vehicles and the world's first rocket plane. Opel RAK.1, a purpose-built design by Julius Hatry, was demonstrated to the public and world media on September 30, 1929, piloted by von Opel. Valier's and von Opel's demonstrations had a strong and long-lasting impact on later spaceflight pioneers, in particular on another of Oberth's students,
Wernher von Braun Wernher Magnus Maximilian Freiherr von Braun ( ; ; 23 March 191216 June 1977) was a German–American aerospace engineer and space architect. He was a member of the Nazi Party and '' Allgemeine SS'', the leading figure in the development of ...
. Shortly after the Opel RAK team's successful liquid-fuel rocket launches of April 10 and 12, 1929 by Friedrich Wilhelm Sander at Opel Rennbahn in Rüsselsheim, Oberth conducted in the autumn of 1929 a static firing of his first liquid-fueled rocket motor, which he named the ''Kegeldüse''. The engine was built by Klaus Riedel in a workshop space provided by the Reich Institution of Chemical Technology, and although it lacked a cooling system, it did run briefly. He was helped in this experiment by an 18-year-old student Wernher von Braun, who would later become a giant in both German and American rocket engineering from the 1940s onward, culminating with the gigantic
Saturn V The Saturn V is a retired American super heavy-lift launch vehicle developed by NASA under the Apollo program for human exploration of the Moon. The rocket was human-rated, had multistage rocket, three stages, and was powered by liquid-propel ...
rockets that made it possible for man to land on the Moon in 1969 and in several following years. Indeed, Von Braun said of him:


Basic research and technical drafts


The rocket in spaceflight

In 1923, Oberth's book ''The Rocket to the Planetary Spaces'' was published. This publication is generally regarded as a kind of initial spark for rocket and space travel enthusiasm in Germany. Many later rocket engineers were inspired by his precise and comprehensive theoretical considerations and his bold conclusions. The work sparked heated debates, known at the time as the Battle of the Many Formulas. The second edition appeared in 1925, and it was also sold out after a short time. In his book, Oberth puts forward the following theses: * ''Premise 1:'' With the current level of science and technology, the construction of machines that can fly higher than the Earth's atmosphere is likely. * ''Premise 2:'' With further refinement, these machines can reach such speeds that they do not have to fall back to the Earth's surface and are even able to leave the Earth's sphere of attraction. * ''Premise 3:'' Such machines can be built in such a way that people (probably without health problems) can ride up with them. * ''Premise 4:'' Under certain economic conditions, the construction of such machines can be worthwhile. Such conditions can occur in a few decades. With the launch of
Sputnik Sputnik 1 (, , ''Satellite 1''), sometimes referred to as simply Sputnik, was the first artificial Earth satellite. It was launched into an elliptical low Earth orbit by the Soviet Union on 4 October 1957 as part of the Soviet space progra ...
(1957) and the flight of
Yuri Gagarin Yuri Alekseyevich Gagarin; Gagarin's first name is sometimes transliterated as ''Yuriy'', ''Youri'', or ''Yury''. (9 March 1934 – 27 March 1968) was a Soviet pilot and cosmonaut who, aboard the first successful Human spaceflight, crewed sp ...
(1961) into space, these ideas, which were still completely utopian at the beginning of the 1920s, became a reality less than four decades later. Marsha Freeman writes, "The rockets were only a means to an end, his goal was space travel." Oberth thought of interplanetary space travel, of a multiplanetary humanity. In his first book in 1923 he gives the first "outlook": He goes into more detail on physical and physical-chemical, as well as physiological experiments in weightless space, on the space telescope, research into the solar corona, the space station for Earth observation and the space mirror in Earth orbit for influencing the weather The third, greatly expanded edition of his first book was published by Oberth in 1929 with the new title ''Ways to Spaceflight''. In the years that followed, the book became the standard work for space exploration and rocket technology and was called the "Bible of scientific
astronautics Astronautics (or cosmonautics) is the practice of sending spacecraft beyond atmosphere of Earth, Earth's atmosphere into outer space. Spaceflight is one of its main applications and space science is its overarching field. The term ''astronautics' ...
" by the French aviation and rocket pioneer
Robert Esnault-Pelterie Robert Albert Charles Esnault-Pelterie (8 November 1881 – 6 December 1957) was a French aircraft designer and spaceflight theorist. He is referred to as being one of the founders of modern rocketry and astronautics, along with the Russian K ...
. In this book, Oberth describes possible uses of his two-stage rocket, among other things on pages 285 to 333 the crewed space flight including
space suit A space suit (or spacesuit) is an environmental suit used for protection from the harsh environment of outer space, mainly from its vacuum as a highly specialized pressure suit, but also its temperature extremes, as well as radiation and ...
for external use, the
space telescope A space telescope (also known as space observatory) is a telescope in outer space used to observe astronomical objects. Suggested by Lyman Spitzer in 1946, the first operational telescopes were the American Orbiting Astronomical Observatory, OAO ...
for
Earth observation Earth observation (EO) is the gathering of information about the physical, chemical, and biosphere, biological systems of the planet Earth. It can be performed via remote sensing, remote-sensing technologies (Earth observation satellites) or throu ...
and the duration of interplanetary flights, on pages 333 to 350 his ideas and the theoretical basis for
space station A space station (or orbital station) is a spacecraft which remains orbital spaceflight, in orbit and human spaceflight, hosts humans for extended periods of time. It therefore is an artificial satellite featuring space habitat (facility), habitat ...
s in near Earth orbit from 700 to 1200 km above the ground for Earth and weather observation and as a starting point for flights to the Moon and to the planets, on pages 336 to 351 he explains the construction and function of the space mirror he invented in 1923 with 100 bis 300 km in diameter in Earth orbit, with which, among other things, the weather is to be influenced in a targeted regional manner or the solar radiation is to be weakened in a targeted regional manner. On pages 350 to 386 in the chapter "Journeys to Strange Worlds", Hermann Oberth presents his scientific considerations and calculations for flights (including landings) to the
Moon The Moon is Earth's only natural satellite. It Orbit of the Moon, orbits around Earth at Lunar distance, an average distance of (; about 30 times Earth diameter, Earth's diameter). The Moon rotation, rotates, with a rotation period (lunar ...
, to
asteroid An asteroid is a minor planet—an object larger than a meteoroid that is neither a planet nor an identified comet—that orbits within the Solar System#Inner Solar System, inner Solar System or is co-orbital with Jupiter (Trojan asteroids). As ...
s, to
Mars Mars is the fourth planet from the Sun. It is also known as the "Red Planet", because of its orange-red appearance. Mars is a desert-like rocky planet with a tenuous carbon dioxide () atmosphere. At the average surface level the atmosph ...
, to
Venus Venus is the second planet from the Sun. It is often called Earth's "twin" or "sister" planet for having almost the same size and mass, and the closest orbit to Earth's. While both are rocky planets, Venus has an atmosphere much thicker ...
, to Mercury and to
comet A comet is an icy, small Solar System body that warms and begins to release gases when passing close to the Sun, a process called outgassing. This produces an extended, gravitationally unbound atmosphere or Coma (cometary), coma surrounding ...
s.


Space Mirror

In 1923, Oberth initially outlined the concept of his space mirrors in his book ''Die Rakete zu den Planetenräumen'' (''The Rocket to Interplanetary Space''). These mirrors, with diameters ranging from 100 to 300 km, were envisioned to be composed of a grid network consisting of individually adjustable facets. Oberth's concept of space mirrors in orbit around the Earth serves the purpose of focusing sunlight on specific regions of the planet's surface or redirecting it into space. This approach differs from creating shaded areas at the Lagrange point between the Earth and the Sun, as it does not involve diminishing solar radiation across the entire exposed surface. According to Oberth, these colossal orbital mirrors possess the potential to illuminate individual cities, safeguard against natural disasters, manipulate weather patterns and climate, and even create additional living space for billions of people. He places significant emphasis on their capacity to influence the trajectories of barometric high and low-pressure areas. However, it is important to acknowledge that the implementation of such
climate engineering Geoengineering (also known as climate engineering or climate intervention) is the deliberate large-scale interventions in the Earth’s climate system intended to counteract human-caused climate change. The term commonly encompasses two broad cate ...
interventions, including space mirrors, requires further extensive research before their practical applicability can be fully realized. Further publications followed in which he took into account the technical progress achieved up to that point: ''Ways to Spaceflight'' (1929), ''Menschen im Weltraum. Neue Projekte für Raketen-und Raumfahrt'' (''People in Space. New Projects for Rocket and Space'', 1957), and ''Der Weltraumspiegel'' (''The Space Mirror'', 1978). To optimize costs, Oberth's concept proposes the utilization of lunar minerals for producing components on the Moon. The Moon's lower gravitational pull necessitates less energy for launching these components into lunar orbit. Additionally, the Earth's atmosphere is spared the burden of numerous rocket launches. The envisioned process involves launching the components from the lunar surface into lunar orbit using an electromagnetic lunar slingshot, subsequently "stacking" them at a 60° libration point. These components could then be transported into orbit via electric spaceships, designed by Oberth with minimal recoil. Once in orbit, the components would be assembled into mirrors with diameters ranging from 100 to 300 km. Oberth's estimate in 1978 suggested that the realization of this concept could occur between 2018 and 2038. Oberth emphasized that these mirrors could potentially serve as weapons. Given this aspect, coupled with the complexity of the project, the realization of these mirrors would only be feasible as a peace initiative undertaken by humanity. In 2023, the space mirror devised by Oberth is categorized within the field of Climate Engineering, specifically under Solar Radiation Management (SRM) as a subset of Space-Mirrors. The associated risks of these deliberate interventions in weather and climate are also examined and deliberated upon within this classification.


The Moon Car

Hermann Oberth published his concept of a moving and jumping lunar vehicle for future, extensive lunar exploration in 1953. In his considerations, he assumed that large distances should be covered quickly and that extensive fissures/ravines or impassable terrain that block the way should be overcome so that large detours can be avoided. The vehicle, which would weigh about 10000 kg on Earth and only 1654 kg on the Moon due to the weak gravitational pull, would be built on Earth, transported to the Moon and dropped on the lunar surface. The tower-like structure has only one leg and it stands on a tracked chassis with a footprint of 2.5 m x 2.5 m. A motor with 51.5 kW of power is sufficient to drive at a speed of up to 150 km/h, depending on the terrain. The required energy in the form of electrical current is supplied by the solar power plant above the crew cabin and the gyroscope. The leg is a gas-tight cylinder in which the 4.5 m long "jumping leg" can move up and down like a piston in a shock absorber and can be extended and retracted for jumping. The powerful gyroscope above the crew cabin keeps the vehicle vertical and ensures that the vehicle can never tilt more than 45 degrees. The jumps could be up to 125 m high and several 100 m wide. Jumping would occur if the vehicle had to overcome an impassable area or fissures/ravines, or if it had to get from a higher location (e.g. a mountain terrace) to a lower location or vice versa. Oberth writes: "I wanted to present my readers not just with a rough sketch of the lunar car, but with drawings and descriptions based on precise calculations and designs. So I racked my brains over hundreds of details, calculated, compared, constructed, rejected and re-planned until the design was such that I could present it with a clear conscience. Now I can say: I am sure that my moon car can be built." Feasibility studies or development work on Oberth's lunar vehicle have not begun until 2023 because there are no concrete plans for lunar exploration in which such a large vehicle could be used.


Ion propulsion for interplanetary spaceflight

The principle of ion propulsion was first presented in 1929 by the space pioneer Hermann Oberth in his work ''Ways to Spaceflight'', which is referred to as the "Bible of Space Technology", in which he describes for the first time the physics, the function, the construction and the use for the interplanetary flight of an ion engine on pages 386 to 399. Oberth also presented at the 12th Rocket and Space Conference of the Deutsche Raketen-Gesellschaft (DRG) (German Rocket Society) in September 1963 in Hamburg, FRG a new idea for the electric spaceship. Quote: "My proposal concerns an electric spaceship that does not emit ions and electrons, but rather nebula droplets that are 1,000 to 100,000 times larger in size depending on the project and to form an ion or electron as a condensation nucleus."


Tasks in World War II

From 1923 to 1938 Oberth worked with short breaks in 1929 and 1930 as a high school teacher for physics and mathematics in his home country
Transylvania Transylvania ( or ; ; or ; Transylvanian Saxon dialect, Transylvanian Saxon: ''Siweberjen'') is a List of historical regions of Central Europe, historical and cultural region in Central Europe, encompassing central Romania. To the east and ...
in Romania. The Romanian Hermann Oberth, known worldwide in the professional world, with his many foreign contacts, was regarded as a security risk for the secrecy of the development work on Aggregate 4 in Peenemünde. Therefore, from June 1938 he was employed / sidelined from June 1938 by means of a two-year research contract with the German Research Institute for Aviation (DVL) at the Vienna University of Technology and then from July 1940 at the University of Technology Dresden in the Greater German Reich. When he wanted to return to Transylvania in May 1941, he received German citizenship and was conscripted in August 1941 under the alias "Friedrich Hann" to the Army Research Institute Peenemünde, where the world's first large rocket, the Aggregat 4 – later called "Vergeltungswaffe V2" – was developed under the direction of
Wernher von Braun Wernher Magnus Maximilian Freiherr von Braun ( ; ; 23 March 191216 June 1977) was a German–American aerospace engineer and space architect. He was a member of the Nazi Party and '' Allgemeine SS'', the leading figure in the development of ...
. Oberth was not involved in this work, but placed in the patent review, and wrote various reports, for example "About the best outline of multi-stage rockets" and about "Defense against enemy planes with large, remote-controlled solid missile". (Oberth criticized the V2 design because, in his view, it was too complicated and too expensive for military purposes. He would have developed a solid fuel rocket for the V2's intended purposes.) Around September 1943, he was awarded the '' Kriegsverdienstkreuz I Klasse mit Schwertern'' (War Merit Cross 1st Class, with Swords) for his "outstanding, courageous behavior ... during the attack" on 17./18. Aug 1943 on Peenemünde by Operation Hydra, part of Allied operations against the German rocket programme. In December 1943 Oberth asked for his transfer to WASAG in Reinsdorf near Wittenberg/FRG to develop the anti-aircraft solid missile recommended by him. He fled from there in April 1945, had to go to two different US internment camps, was released in August 1945 as a "person unaffected by the Nazi era" and came to live with his family in Feucht (Middle Franconia) FRG, where his family had already moved in 1943. Feucht is located near the regional capital of
Nuremberg Nuremberg (, ; ; in the local East Franconian dialect: ''Nämberch'' ) is the Franconia#Towns and cities, largest city in Franconia, the List of cities in Bavaria by population, second-largest city in the States of Germany, German state of Bav ...
, which became part of the
American Zone The American occupation zone in Germany (German language, German: ), also known as the US-Zone, and the Southwest zone, was one of the four Allied-occupied Germany, occupation zones established by the Allies of World War II in Germany west of t ...
of occupied Germany, and also the location of the high-level war-crimes trials of the surviving Nazi leaders.


Post-war period

Oberth was not involved in the American " Project Paperclip" because he was not involved in the development of the Aggregat 4 - later called "Vergeltungswaffe V2". For Oberth there was no employment in Germany either as a teacher of physics or mathematics or as a scientist. That is why Hermann Oberth went to
Switzerland Switzerland, officially the Swiss Confederation, is a landlocked country located in west-central Europe. It is bordered by Italy to the south, France to the west, Germany to the north, and Austria and Liechtenstein to the east. Switzerland ...
in 1948 and worked there both as a scientific consultant and as an author for the specialist journal ''Interavia''. In the years 1950 to 1953 he was in the service of the
Italian Navy The Italian Navy (; abbreviated as MM) is one of the four branches of Italian Armed Forces and was formed in 1946 from what remained of the ''Regia Marina'' (Royal Navy) after World War II. , the Italian Navy had a strength of 30,923 active per ...
and developed a solid fuel rocket. In 1953, Oberth returned to Feucht, Germany, to publish his book ''Menschen im Weltraum'' (''Man into Space''), in which he described his ideas for space-based
reflecting telescope A reflecting telescope (also called a reflector) is a telescope that uses a single or a combination of curved mirrors that reflect light and form an image. The reflecting telescope was invented in the 17th century by Isaac Newton as an alternati ...
s,
space station A space station (or orbital station) is a spacecraft which remains orbital spaceflight, in orbit and human spaceflight, hosts humans for extended periods of time. It therefore is an artificial satellite featuring space habitat (facility), habitat ...
s, electric-powered spaceships, and
space suit A space suit (or spacesuit) is an environmental suit used for protection from the harsh environment of outer space, mainly from its vacuum as a highly specialized pressure suit, but also its temperature extremes, as well as radiation and ...
s. Oberth eventually worked from 1955 for his former assistant Wernher von Braun, who was developing space rockets for NASA in Huntsville, Alabama. Among other things, Oberth was involved in preparing the study "The Development of Space Technology in the Next Ten Years". In 1958, Oberth returned to Feucht, Germany, where he published his ideas for a lunar exploration vehicle, a "moon catapult", and "damped" helicopters and airplanes. In 1961, Oberth returned to the United States, where he worked for the Convair Corporation as a technical consultant for the
Atlas missile The SM-65 Atlas was the first operational intercontinental ballistic missile (ICBM) developed by the United States and the first member of the Atlas rocket family. It was built for the U.S. Air Force by the Convair Division of General Dy ...
program. He retired in 1962. During the 1950s and 1960s, Oberth offered his opinions regarding
unidentified flying object An unidentified flying object (UFO) is an object or phenomenon seen in the sky but not yet identified or explained. The term was coined when United States Air Force (USAF) investigations into flying saucers found too broad a range of shapes ...
s (UFOs). He was a supporter of the extraterrestrial hypothesis for the origin of the UFOs that were seen from Earth. For example, in an article in ''The American Weekly'' magazine of 24 October 1954, Oberth stated: "It is my thesis that flying saucers are real, and that they are space ships from another solar system. I think that they possibly are manned by intelligent observers who are members of a race that may have been investigating our earth for centuries". He also published in the second edition of ''Flying Saucer Review'', an article titled, "They Come From Outer Space". He discussed the history of reports of "strange luminous objects" in the sky, mentioning that the earliest historical case is of "Shining Shields" reported by
Pliny the Elder Gaius Plinius Secundus (AD 23/24 79), known in English as Pliny the Elder ( ), was a Roman Empire, Roman author, Natural history, naturalist, and naval and army commander of the early Roman Empire, and a friend of the Roman emperor, emperor Vesp ...
. He wrote, "Having weighed all the pros and cons, I find the explanation of flying discs from outer space the most likely one. I call this the "Uraniden" hypothesis, because from our viewpoint the hypothetical beings appear to come from the sky (Greek – 'Uranos')."


Later life

Oberth retired in 1962 at the age of 68. From 1965 to 1967 he was a member of the
National Democratic Party of Germany National Democratic Party of Germany (, NPD), officially called The Homeland () since 2023, is a Far-right politics, far-right, Neo-Nazism, neo-Nazi and Ultranationalism, ultranationalist political party in Germany. It was founded in 1964 as ...
, which was considered to be
far right Far-right politics, often termed right-wing extremism, encompasses a range of ideologies that are marked by ultraconservatism, authoritarianism, ultranationalism, and Nativism (politics), nativism. This political spectrum situates itself on ...
. In July 1969, Oberth returned to the United States to witness the launch of the
Apollo project The Apollo program, also known as Project Apollo, was the United States human spaceflight program led by NASA, which Moon landing, landed the first humans on the Moon in 1969. Apollo followed Project Mercury that put the first Americans in sp ...
Saturn V The Saturn V is a retired American super heavy-lift launch vehicle developed by NASA under the Apollo program for human exploration of the Moon. The rocket was human-rated, had multistage rocket, three stages, and was powered by liquid-propel ...
rocket from the
Kennedy Space Center The John F. Kennedy Space Center (KSC, originally known as the NASA Launch Operations Center), located on Merritt Island, Florida, is one of the NASA, National Aeronautics and Space Administration's (NASA) ten NASA facilities#List of field c ...
in
Florida Florida ( ; ) is a U.S. state, state in the Southeastern United States, Southeastern region of the United States. It borders the Gulf of Mexico to the west, Alabama to the northwest, Georgia (U.S. state), Georgia to the north, the Atlantic ...
that carried the
Apollo 11 Apollo 11 was a spaceflight conducted from July 16 to 24, 1969, by the United States and launched by NASA. It marked the first time that humans Moon landing, landed on the Moon. Commander Neil Armstrong and Lunar Module pilot Buzz Aldrin l ...
crew on the first landing mission to the
Moon The Moon is Earth's only natural satellite. It Orbit of the Moon, orbits around Earth at Lunar distance, an average distance of (; about 30 times Earth diameter, Earth's diameter). The Moon rotation, rotates, with a rotation period (lunar ...
."Hermann Oberth"
, at the U.S. Centennial of Flight Commission
The
1973 oil crisis In October 1973, the Organization of Arab Petroleum Exporting Countries (OAPEC) announced that it was implementing a total oil embargo against countries that had supported Israel at any point during the 1973 Yom Kippur War, which began after Eg ...
inspired Oberth to look into alternative energy sources, including a plan for a wind power station that could utilize the
jet stream Jet streams are fast flowing, narrow thermal wind, air currents in the Earth's Atmosphere of Earth, atmosphere. The main jet streams are located near the altitude of the tropopause and are westerly winds, flowing west to east around the gl ...
. However, his primary interest during his retirement years was to turn to more abstract philosophical questions. Most notable among his several books from this period is ''Primer For Those Who Would Govern''. Oberth returned to the United States to view the launch of STS-61-A, the Space Shuttle ''Challenger'' launched 30 October 1985. Oberth died in Nuremberg, West Germany, on 28 December 1989, just shortly after the fall of the Iron Curtain. Oberth was described as a "loyal supporter and donor" by Stille Hilfe, a Nazi support organisation, in its obituary of him.


Awards and honors

* Member of the Coetus Chlamydatorum Schaessburgiensis (Assembly of the Schaeßburg Gymnasium) List from the Oberth biography by Hans Barth * 1927: Honorary member of the German ''Verein für Raumschiffahrt'' (Space Flight Association), Berlin * 1929: International Award for Astronautics (Robert Esnault-Pelterie-Hirsch-Award) of the ''Société astronomique de France'', Paris * 1946: Honorary Member of the Astronautical Section of the ''French Academy of Sciences'', Paris * 1948: Honorary President of the ''Gesellschaft für Weltraumforschung'' (Society for Space Research), Stuttgart, Germany * 1949: Honorary memberships of the ''British Interplanetary Society'', London / ''Dansk Selskab for Rumfartsforskening'', Copenhagen / ''Pacific Rocket Society'' / ''Detroit Rocket Society'' and of ''Northwest German Society for Space Flight'' * 1950: The ''Gesellschaft für Weltraumforschung'' (Society for Space Research) donates the Hermann Oberth Medal * 1951: Honorary President of the ''Detroit Rocket Society'' * 1952: Honorary President of the ''Deutsche Raketen-Gesellschaft'' (German Rocket Society), Bremen, Germany * 1952: Honorary President of the ''Vereinigte Astronautische Vereinigung'' (United Astronautical Association), Leipzig * 1953: Honorary member of the ''Schweizerischen Arbeitsgemeinschaft für Raumfahrt'' (Swiss Association for Astronautics), Lucerne * 1954: Diesel Medal in gold from the ''Deutschen Erfinderverbandes'' (German Inventors' Association), Nuremberg * 1954: Honorary memberships of the ''Austrian Society for Space Research'', Vienna and of the ''German Association of Inventors'' * 1955: Plaque of Honor of the ''American Astronautical Society'' * 1956: Edward Pendray Award from the ''American Rocket Society'', New York * 1958: The ''American Astronautical Society'' donates the Hermann Oberth Award * 1959: The ''American Rocket Society'' donates the Hermann Oberth Award * 1960: Honorary Member of the ''Hellenic Astronautical Society'', Athens, Greece * 1961: Honorary Doctorate from ''Wesley College'' in Mount Pleasant (Iowa, US) * 1961: ''Order of Merit of the Federal Republic of Germany'', Great Cross of Merit, Order of Merit of the FRG * 1961: Awarded the ''Yuri Gagarin Medal'' * 1961: Honorary memberships of the ''Association Internazionale "Uomini nello Sazio"'', Rome and of ''Centro Italiano Ricerche Elettroniche Nuclear'', Rome * 1961: Hat of Honor and Golden Key of the ''City of El Paso'', US * 1962: Prix Galabert, Paris * 1962: Odre du Merite pour la Recherche et l'Invention of the Société d'Encouragement pour la he et l'Invention, Paris * 1963: Honorary Member of the ''Spanish Astronautical Association'' * 1963: Honorary doctorate Dr.-Ing. eh of the ''Technische Universität Berlin'' * 1963: The ''Deutsche Raketen-Gesellschaft'' (German Rocket Society) is renamed to ''Hermann-Oberth-Gesellschaft'', today ''Deutsche Gesellschaft für Luft- und Raumfahrt, Lilienthal – Oberth'' * 1963: Joseph-Ritter-von-Prechtl-Medal of the ''University of Vienna'' * 1963: Honorary memberships of the ''Portuguese Astronautical Association'' and of ''Society for Interplanetary Science'', Vienna * 1965: Pioneer necklace of the compass rose with brilliant from the ''International Committee of Aerospace Activities'' * 1968: Honorary member of the ''Deutsche Gesellschaft für Luft- und Raumfahrtmedizin'' (German Society for Aerospace Medicine) * 1969: Honorary doctorate from the ''Universitat Politècnica de Catalunya'' * 1969: Medal of the ''International Academy for Astronautics'' (IAA) * 1969: The ''Hermann Oberth Society'' donates the Hermann Oberth Ring of Honor and a Hermann Oberth Award * 1969: Honorary Member of the ''American Institute of Aeronautics and Astronautics'' (AIAA) and AIAA Medal of Honor * 1969: Honorary member of the ''Österreichischen Gesellschaft für Weltraumforschung und Flugkörpertechnik'' (Austrian Society for Space Research and Missile Technology), Vienna * 1969: Honorary Member of the ''Centro de Estudios Interplanetaios'', Madrid * 1969: Golden Key of the ''City of Cleveland'', Ohio, US * 1969: Badge of honor from the ''Ostdeutschen Kulturrats. Stiftung für kulturelle Zusammenarbeit'' (East German Cultural Council. Foundation for Cultural Cooperation), Bonn * 1969: Founding of the ''Internationaler Förderkreis für Raumfahrt Hermann Oberth - Wernher von Braun'' (International Promotional Group for Astronautics, Hermann Oberth – Wernher von Braun), Nuremberg, Germany * 1970: The ''Hermann Oberth-Geselllschaft'' donates the Hermann Oberth Medal in Gold * 1970: Wilhelm Exner Medal in gold from the ''Österreichischen Gewerbeverband'' (Austrian Trade Association), Vienna * 1970: Culture Award of the ''Transylvanian Saxons Landsmannschaft'' in Germany and Austria * 1971: Opening of the ''Hermann Oberth Raumfahrt-Museum'' (Hermann Oberth Space Flight Museum) in Feucht/Nuremberg, Germany * 1972: Honorary doctorate from the ''Babeș Bolyai University'' in Cluj-Napoca (Klausenburg), Romania * 1974: Scientific Order of Merit 1st Class of the ''Socialist Republic of Romania'' * 1974: Dozens of 80th birthday medals and honors * 1976: Hermann Oberth monument in the city park of Feucht/Nuremberg, Germany * 1976: Oberth department in the Technical Museum, Bucharest, Romania * 1979: Jubilee Congress in Salzburg on the occasion of the 85th birthday * 1981: Relief portrait in the main hall of ''Berlin-Tegel Airport'' * 1982: Tsiolkovsky Medal from the ''USSR Academy of Sciences'' * 1984: Honorary doctorate from the ''Technische Universität Graz'', Austria * 1984: Cross of Merit of the Bavarian Order of Merit, Munich, Germany * 1984: Golden Ring of Honor of the ''Deutsches Museum'', Munich, Germany * 1984: Leibnitz plaque of honor from the ''Akademie der Wissenschaften der DDR'' (Academy of Sciences, GDR) * 1985: ''Order of Merit of the Federal Republic of Germany'', Grand Cross of Merit with star, Order of Merit of FRG * 1997: A moon crater is named after Hermann Oberth. * 1999: An asteroid is named after Hermann Oberth: (9253) Oberth * Hermann Oberth School in Mediaș, Romania * Hermann Oberth kindergarten and high school in Bucharest, Romania * Hermann Oberth Faculty of Engineering in Hermannstadt at the Lucian Blaga University, Romania * Hermann-Oberth-Place in Schaeßburg, Romania *
Oberth effect In astronautics, a powered flyby, or Oberth maneuver, is a maneuver in which a spacecraft falls into a gravitational well and then uses its engines to further accelerate as it is falling, thereby achieving additional speed. The resulting maneuve ...
– the effect for fuel-saving maneuvers in interplanetary space travel is named after him. He was the first to describe it.


Legacy

Hermann Oberth is memorialized by the Hermann Oberth Space Travel Museum in Feucht, Germany, and by the Hermann Oberth Society. The museum brings together scientists, researchers, engineers, and astronauts from the East and the West to carry on his work in rocketry and space exploration. In 1980, Oberth was inducted into the International Air & Space Hall of Fame at the
San Diego Air & Space Museum The San Diego Air & Space Museum (SDASM) is an aviation and space exploration museum in San Diego, California. It is located in Balboa Park (San Diego), Balboa Park and is housed in the former Ford Building (San Diego), Ford Building, which is li ...
. The Danish Astronautical Society has named Hermann Oberth an honorary member. In Romania, the Faculty of Engineering of Lucian Blaga University of Sibiu is named after him. In 1994, a memorial house was established in Mediaș on the 100th anniversary of his birth. It exhibits various items related to rocket technology and space travel, and also has an audio-video room for documentary films. He discovered the
Oberth effect In astronautics, a powered flyby, or Oberth maneuver, is a maneuver in which a spacecraft falls into a gravitational well and then uses its engines to further accelerate as it is falling, thereby achieving additional speed. The resulting maneuve ...
(powered flyby or Oberth maneuver), a fuel-saving strategy for interplanetary space flight that is commonly used today. There are also a crater on the Moon and asteroid 9253 Oberth named after him. In '' Star Trek III: The Search for Spock'', the USS ''Grissom'' was classified as an ''Oberth''-class starship. Several other ''Oberth''-class starships also appeared in subsequent ''Star Trek'' films and television series.


Books

* ''Die Rakete zu den Planetenräumen'' (1923) (''The Rocket into Planetary Space'') (in German) ** ''The Rocket into Planetary Space'' (2014) (English translation of ''Die Rakete zu den Planetenräumen''
de Gruyter
* Wege zur Raumschiffahrt (1929) *
''Ways to Spaceflight''
(1972) (English translation of ''Wege zur Raumschiffahrt'') * ''The Moon Car'' (1959) * ''The Electric Spaceship'' (1960) * ''Primer for Those Who Would Govern'' (1987) * Georgiy Stepanovich Vetrov, ''S. P. Korolyov and space. First steps. – 1994 M. Nauka, . * S. P. Korolev. Encyclopedia of life and creativity" – edited by C. A. Lopota, RSC Energia. S. P. Korolev, 2014


See also

*
Robert H. Goddard Robert Hutchings Goddard (October 5, 1882 – August 10, 1945) was an American engineer, professor, physicist, and inventor who is credited with creating and building the world's first liquid-fueled rocket, which was successfully lau ...
* Conrad Haas *
High altitude wind power Airborne wind energy (AWE) is the direct use or generation of wind energy by the use of aerodynamic or aerostatic lift devices. AWE technology is able to harvest high altitude winds, in contrast to wind turbines, which use a rotor mounted on a t ...
* Outer space *
Konstantin Tsiolkovsky Konstantin Eduardovich Tsiolkovsky (; rus, Константин Эдуардович Циолковский, p=kənstɐnʲˈtʲin ɪdʊˈardəvʲɪtɕ tsɨɐlˈkofskʲɪj, a=Ru-Konstantin Tsiolkovsky.oga; – 19 September 1935) was a Russi ...
* Gernot M. R. Winkler * List of German inventors and discoverers * List of Romanian inventors and discoverers


References


External links


The Hermann Oberth Space Museum
{{DEFAULTSORT:Oberth, Hermann 1894 births 1989 deaths 20th-century German engineers People from Sibiu Transylvanian Saxon people People from the Kingdom of Hungary Early rocketry Early spaceflight scientists German expatriates in the United States 20th-century German physicists 20th-century Hungarian physicists German Lutherans German people of World War II German Army personnel of World War I Members of the Romanian Academy elected posthumously Babeș-Bolyai University alumni Knights Commander of the Order of Merit of the Federal Republic of Germany Research and development in Nazi Germany Rocket science pioneers German male essayists 20th-century German essayists 20th-century German male writers 20th-century Lutherans Emigrants from Austria-Hungary to Germany