October 5: Robert Goddard

Robert Hutchings Goddard

October 5, 1882 – August 10, 1945

Robert Goddard, U.S. professor of physics and scientist, was a pioneer of controlled, liquid-fueled rocketry. He launched the world's first liquid-fueled rocket on March 16, 1926. From 1930 to 1935, he launched rockets that attained speeds of up to 885 km/h (550 mph). Though his work in the field was revolutionary, he was sometimes ridiculed for his theories.

Goddard received little scientific support during his lifetime. Eventually, however, he became recognized — along with Tsiolkovsky and Oberth — as one of the fathers of modern rocketry. He was the first not only to recognize the scientific potential behind missiles and space travel but also to bring about the physical design and construction of those ideas.

In 1919, the Smithsonian Institution published Goddard's groundbreaking work, A Method of Reaching Extreme Altitudes. The report describes Goddard's mathematical theories of rocket flight, his experiments with solid-fuel rockets, and the possibilities he saw of exploring the earth's atmosphere and beyond. Along with Konstantin Tsiolkovsky's earlier work, The Exploration of Cosmic Space by Means of Reaction Devices (1903), Goddard's little book is regarded as one of the pioneering works of the science of rocketry. It was distributed worldwide and is believed to have influenced the work of subsequent pioneers such as Hermann Oberth and Wernher von Braun in Germany and Sergey Korolev in the USSR.

Goddard began experimenting with liquid oxygen and liquid-fueled rockets in September 1921, and bench tested the first liquid-fueled engine in November 1923. It had a cylindrical combustion chamber, using impinging jets to mix and atomize liquid oxygen and gasoline.

He launched the first liquid-fueled rocket on March 16, 1926 in Auburn, Massachusetts. His journal entry of the event was notable for its laconic understatement: "The first flight with a rocket using liquid propellants was made yesterday at Aunt Effie's farm." The rocket, which was dubbed "Nell", rose just 41 feet during a 2.5-second flight that ended in a cabbage field, but it was an important demonstration that liquid propellants were possible. The launch site is now a National Historic Landmark, the Goddard Rocket Launching Site.

Goddard was awarded 214 patents for his work, 83 of which came during his lifetime.

The Goddard Space Flight Center was established in 1959. The crater Goddard on the Moon is also named in his honor.

September 17: Konstantin Tsiolkovsky

Konstantin Eduardovich Tsiolkovsky

September 17, 1857 – September 19, 1935

Konstantin Tsiolkovsky was an Imperial Russian and Soviet rocket scientist and pioneer of the astronautic theory. He is considered by many to be the father of theoretical astronautics. His works later inspired leading Soviet rocket engineers such as Sergey Korolyov and Valentin Glushko and contributed to the early success of the Soviet space program.

Tsiolkovsky theorized many aspects of space travel and rocket propulsion. He is considered the father of spaceflight and the first man to conceive the space elevator, becoming inspired in 1895 by the newly-constructed Eiffel Tower in Paris.

He was also an adherent of philosopher Nikolai Fyodorov, and believed that colonizing space would lead to the perfection of the human race, with immortality and a carefree existence.

In the late 19th and early 20th century, Tsiolkovsky delved into theories of heavier-than-air flying machines, independently working through many of the same calculations that the Wright brothers were doing at the same time. However, he never built any practical models, and his interest shifted to more ambitious topics. Because Tsiolkovsky's ideas were little known outside Imperial Russia, the field lagged until German and other scientists independently made the same calculations decades later.

In 1923, German physicist Hermann Oberth published his thesis By Rocket into Planetary Space, which triggered wide-scale interest and scientific research on the topic of space flight. It also reminded Friedrich Zander about once having read an article on the subject. After contacting the author, he became active in promoting and further developing Tsiolkovsky's work. In 1924 Zander established the first astronautics society in the Soviet Union, the Society for Studies of Interplanetary Travel, and later researched and built liquid-fuelled rockets named OR-1 (1930) and OR-2 (1933).

In 1924, a writer for the Russian newspaper Izvestiia reported on A Method of Reaching Extreme Altitudes, a groundbreaking work on the rocketry experiments being done by Robert Goddard, which had been published in 1919 but was not noticed in the Soviet Union until Hermann Oberth referenced it in his later work. When news of the article reached Tsiolkovsky, he decided to republish his early works along with a flurry of new articles about space.

His most important work, published in 1903, was The Exploration of Cosmic Space by Means of Reaction Devices, arguably the first academic treatise on rocketry. Tsiolkovsky calculated that the horizontal speed required for a minimal orbit around the Earth is 8,000 m/s (5 miles per second) and that this could be achieved by means of a multistage rocket fueled by liquid oxygen and liquid hydrogen.

During his lifetime he published over 500 works on space travel and related subjects, including science fiction novels. Among his works are designs for rockets with steering thrusters, multi-stage boosters, space stations, airlocks for exiting a spaceship into the vacuum of space, and closed cycle biological systems to provide food and oxygen for space colonies.

Tsiolkovsky's work influenced later rocketeers throughout Europe, like Wernher von Braun, and was also studied by the Americans in the 1950s and 1960s as they sought to understand the Soviet Union's successes in space flight.

The crater Tsiolkovskiy (the most prominent crater on the far side of the Moon) was named after him. The Soviet Union obtained naming rights by operating Luna 3, the first space device to successfully transmit images of the side of the moon not seen from Earth.

March 20: David Lasser

David Lasser

March 20, 1902 – May 5, 1996

David Lasser was one of the most influential figures of early science fiction writing, working closely with Hugo Gernsback.

In the 1920s, Lasser moved to New York, where he pursued his interest in the nascent fields of rocketry and science fiction. On 4 April 1930, he became president of the American Interplanetary Society (renamed the American Rocket Society in 1934), which he founded with Gawain and Leatrice Pendray, both regular contributors to Science Wonder Stories.

Lasser used his expertise in science, engineering, and rocketry to write The Conquest of Space (1931). It was the first non-fiction English-language book to deal with spaceflight and detailed how man could one day travel into outer space. The book was an inspiration to a generation of science-fiction writers, including Arthur C. Clarke. From 1929 to 1933, Lasser worked as the Managing Editor of Hugo Gernsback’s Stellar Publishing Corporation. He was responsible for editing all the issues of Science Wonder Stories and Wonder Stories Quarterly, as well as identifying and retaining promising writers. Lasser also edited Gernsback’s Wonder Stories from June 1930 to October 1933 and remained involved in the science fiction realm throughout his life.

The American Institute of Aeronautics and Astronautics (AIAA) currently awards the Gardner-Lasser Aerospace History Literature Award to the best original non-fiction work dealing with aeronautics or aeronautical history. The award is named to honor David Lasser and Lester Gardner.

January 12: Sergey Pavlovich Korolyov

Sergey Pavlovich Korolyov

January 12, 1907 – January 14, 1966

Korolyov (also spelled Korolev) was the head Soviet rocket engineer and designer during the Space Race between the United States and the Soviet Union in the 1950s and 1960s. He invented the R-7 rocket.

Korolyov's greatest strengths proved to be in design integration, organization and strategic planning. He was appointed to lead the Soviet space program and oversaw the early successes of the Sputnik and Vostok projects. By the time he died unexpectedly in 1966, his plans to compete with the United States to be the first nation to land a man on the Moon had begun to be implemented.

Before his death he was often referred to only as "Chief Designer", because his name and his pivotal role in the Soviet space program had been held to be a state secret by the Politburo. Only many years later he was publicly acknowledged as the lead man behind Soviet success in space.

The Lunar basin Korolev is named in his honor.