The Jet Propulsion Laboratory (JPL) is a
federally funded research and development center
Federally funded research and development centers (FFRDCs) are public-private partnerships that conduct research and development for the United States Government. Under Federal Acquisition Regulationbr>§ 35.017 FFRDCs are operated by unive ...
and
NASA
The National Aeronautics and Space Administration (NASA ) is an independent agency of the US federal government responsible for the civil space program, aeronautics research, and space research.
NASA was established in 1958, succeeding t ...
field center in the City of
La Cañada Flintridge
LA most frequently refers to Los Angeles, the second largest city in the United States.
La, LA, or L.A. may also refer to:
Arts and entertainment Music
* La (musical note), or A, the sixth note
* "L.A.", a song by Elliott Smith on ''Figure ...
,
California
California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...
,
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...
.
Founded in the 1930s by Caltech researchers, JPL is owned by NASA and managed by the nearby
California Institute of Technology (Caltech). The laboratory's primary function is the construction and operation of planetary
robotic spacecraft
A robotic spacecraft is an uncrewed spacecraft, usually under telerobotic control. A robotic spacecraft designed to make scientific research measurements is often called a space probe. Many space missions are more suited to telerobotic rather t ...
, though it also conducts Earth-orbit and astronomy missions. It is also responsible for operating the
NASA Deep Space Network
The NASA Deep Space Network (DSN) is a worldwide network of American spacecraft communication ground segment facilities, located in the United States (California), Spain (Madrid), and Australia (Canberra), that supports NASA's interplanetary ...
.
Among the laboratory's major active projects are the
Mars 2020
Mars 2020 is a Mars rover mission forming part of NASA's Mars Exploration Program that includes the rover ''Perseverance'', the small robotic, coaxial helicopter '' Ingenuity'', and associated delivery vehicles. Mars 2020 was launched from Ear ...
mission, which includes the ''
Perseverance'' rover and the ''
Ingenuity'' Mars helicopter; the
Mars Science Laboratory mission, including the ''
Curiosity
Curiosity (from Latin '' cūriōsitās'', from ''cūriōsus'' "careful, diligent, curious", akin to ''cura'' "care") is a quality related to inquisitive thinking such as exploration, investigation, and learning, evident by observation in humans ...
'' rover; the
InSight lander (''Interior Exploration using Seismic Investigations, Geodesy and Heat Transport''); the ''
Mars Reconnaissance Orbiter''; the ''
Juno
Juno commonly refers to:
*Juno (mythology), the Roman goddess of marriage and queen of the gods
*Juno (film), ''Juno'' (film), 2007
Juno may also refer to:
Arts, entertainment and media Fictional characters
*Juno, in the film ''Jenny, Juno''
*Ju ...
'' spacecraft orbiting
Jupiter
Jupiter is the fifth planet from the Sun and the List of Solar System objects by size, largest in the Solar System. It is a gas giant with a mass more than two and a half times that of all the other planets in the Solar System combined, but ...
; the ''
SMAP'' satellite for earth surface soil moisture monitoring; the
NuSTAR
NuSTAR (Nuclear Spectroscopic Telescope Array, also named Explorer 93 and SMEX-11) is a NASA space-based X-ray telescope that uses a conical approximation to a Wolter telescope to focus high energy X-rays from astrophysical sources, especiall ...
X-ray telescope; and the forthcoming ''
Psyche'' asteroid orbiter. It is also responsible for managing the
JPL Small-Body Database, and provides physical data and lists of publications for all known
small Solar System bodies.
JPL's
Space Flight Operations Facility and
Twenty-Five-Foot Space Simulator are designated
National Historic Landmark
A National Historic Landmark (NHL) is a building, district, object, site, or structure that is officially recognized by the United States government for its outstanding historical significance. Only some 2,500 (~3%) of over 90,000 places listed ...
s.
History

JPL traces its beginnings to 1936 in the
Guggenheim Aeronautical Laboratory
The Guggenheim Aeronautical Laboratory at the California Institute of Technology (GALCIT), was a research institute created in 1926, at first specializing in aeronautics research. In 1930, Hungarian scientist Theodore von Kármán accepted the dire ...
at the California Institute of Technology (GALCIT) when the first set of rocket experiments were carried out in the
Arroyo Seco. Caltech graduate students
Frank Malina,
Qian Xuesen
Qian Xuesen, or Hsue-Shen Tsien (; 11 December 1911 – 31 October 2009), was a Chinese mathematician, cyberneticist, aerospace engineer, and physicist who made significant contributions to the field of aerodynamics and established engineeri ...
,
Weld Arnold
Weld may refer to:
* Welding, a metalworking technique
* Weld (name), and persons with the name
* Weld, Maine, United States
* Weld County, Colorado, United States
* ''Weld'' (album), 1991, by Neil Young & Crazy Horse
* ''Reseda luteola'', a pl ...
and
Apollo M. O. Smith
Apollo Milton Olin Smith (usually referred to as A.M.O. Smith) (July 2, 1911 – May 1, 1997) was an important figure in the aerodynamics field at Douglas Aircraft from 1938 to 1975 and an early pioneer in the area of computational fluid dynamics. ...
, along with
Jack Parsons
John Whiteside Parsons (born Marvel Whiteside Parsons; October 2, 1914 – June 17, 1952) was an American Aerospace engineering, rocket engineer, chemist, and Thelema, Thelemite occultist. Associated with the California Institute of Technology ...
and
Edward S. Forman
Edward is an English given name. It is derived from the Anglo-Saxon name ''Ēadweard'', composed of the elements '' ēad'' "wealth, fortune; prosperous" and '' weard'' "guardian, protector”.
History
The name Edward was very popular in Anglo-Sax ...
, tested a small, alcohol-fueled motor to gather data for Malina's graduate thesis. Malina's thesis advisor was engineer/aerodynamicist
Theodore von Kármán, who eventually arranged for U.S. Army financial support for this "GALCIT Rocket Project" in 1939. In 1941, Malina, Parsons, Forman,
Martin Summerfield, and pilot Homer Bushey demonstrated the first jet-assisted takeoff (
JATO
JATO (acronym for jet-assisted take-off) is a type of assisted take-off for helping overloaded aircraft into the air by providing additional thrust in the form of small rockets. The term ''JATO'' is used interchangeably with the (more specific ...
) rockets to the Army. In 1943, von Kármán, Malina, Parsons, and Forman established the
Aerojet
Aerojet was an American rocket and missile propulsion manufacturer based primarily in Rancho Cordova, California, with divisions in Redmond, Washington, Orange and Gainesville in Virginia, and Camden, Arkansas. Aerojet was owned by GenCorp. ...
Corporation to manufacture JATO rockets. The project took on the name Jet Propulsion Laboratory in November 1943, formally becoming an Army facility operated under contract by the university.
In 1944, Parsons was expelled due to his "unorthodox and unsafe working methods" following one of several FBI investigations into his involvement with the occult, drugs and sexual promiscuity.
During JPL's Army years, the laboratory developed two deployed weapon systems, the
MGM-5 Corporal
The MGM-5 Corporal missile was a nuclear-armed tactical surface-to-surface missile. It was the first guided weapon authorized by the United States to carry a nuclear warhead. A guided tactical ballistic missile, the Corporal could deliver either ...
and
MGM-29 Sergeant intermediate-range ballistic missiles. These missiles were the first US ballistic missiles developed at JPL. It also developed a number of other weapons system prototypes, such as the Loki anti-aircraft missile system, and the forerunner of the
Aerobee sounding rocket. At various times, it carried out rocket testing at the
White Sands Proving Ground
White Sands Missile Range (WSMR) is a United States Army military testing area and firing range located in the US state of New Mexico. The range was originally established as the White Sands Proving Ground on 9July 1945. White Sands National Pa ...
,
Edwards Air Force Base
Edwards Air Force Base (AFB) is a United States Air Force installation in California. Most of the base sits in Kern County, but its eastern end is in San Bernardino County and a southern arm is in Los Angeles County. The hub of the base is E ...
, and
Goldstone, California
The Goldstone Deep Space Communications Complex (GDSCC), commonly called the Goldstone Observatory, is a satellite ground station located in Fort Irwin in the U.S. state of California. Operated by NASA's Jet Propulsion Laboratory (JPL), its main ...
.
In 1954, JPL teamed up with
Wernher von Braun's engineers at the
Army Ballistic Missile Agency's
Redstone Arsenal
Redstone Arsenal (RSA) is a United States Army post and a census-designated place (CDP) adjacent to Huntsville in Madison County, Alabama, United States and is part of the Huntsville-Decatur Combined Statistical Area. The Arsenal is a garrison f ...
in
Huntsville, Alabama
Huntsville is a city in Madison County, Limestone County, and Morgan County, Alabama, United States. It is the county seat of Madison County. Located in the Appalachian region of northern Alabama, Huntsville is the most populous city in t ...
, to propose orbiting a satellite during the
International Geophysical Year
The International Geophysical Year (IGY; french: Année géophysique internationale) was an international scientific project that lasted from 1 July 1957 to 31 December 1958. It marked the end of a long period during the Cold War when scientific ...
. The team lost that proposal to
Project Vanguard, and instead embarked on a classified project to demonstrate ablative re-entry technology using a
Jupiter-C
The Jupiter-C was an American research and development vehicle developed from the Jupiter-A. Jupiter-C was used for three unmanned sub-orbital spaceflights in 1956 and 1957 to test re-entry nosecones that were later to be deployed on the more a ...
rocket. They carried out three successful sub-orbital flights in 1956 and 1957. Using a spare
Juno I (a modified Jupiter-C with a fourth stage), the two organizations then launched the United States' first satellite,
Explorer 1
Explorer 1 was the first satellite launched by the United States in 1958 and was part of the U.S. participation in the International Geophysical Year (IGY). The mission followed the first two satellites the previous year; the Soviet Union's ...
, on January 31, 1958.

JPL was transferred to NASA in December 1958,
becoming the agency's primary planetary spacecraft center. JPL engineers designed and operated