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55-535: After the "flagship" multibillion-dollar missions of the 1970s, in the 1980s NASA was looking for a new, more affordable direction for the 1990s and beyond. Two projects were conceived by NASA's Solar System Exploration Committee in 1983, the Planetary Observer program , and Mariner Mark II. The Observer program, starting with the Mars Observer , was envisioned as a series of low-cost missions to

110-409: A close flyby of Saturn 's moon Titan . The spacecraft sent back detailed images and data from both gas giants, revolutionizing our understanding of these distant worlds. The Voyager 2 spacecraft followed a more extensive trajectory, conducting flybys of not just Jupiter and Saturn, but also Uranus and Neptune. These encounters provided firsthand data from all four gas giants, offering insights into

165-507: A disaster or terrorist attack. FINDER uses microwave radar to detect breathing and pulses. Additionally, JPL is home to the JPL-RPIF (Jet Propulsion Laboratory – Regional Planetary Image Facility) which is chartered as a repository for all robotic spacecraft hard-copy data and thus provides a valuable resource to NASA funded science investigators, and an important conduit for the distribution of NASA generated materials to local educators in

220-592: A kilometer or more in diameter that cross Earth's orbit by 2013. Entering the 2010s and 2020s, JPL continued its Mars exploration with the Curiosity rover and the Mars 2020 mission, which included the Perseverance rover and the retired Ingenuity helicopter . Perseverance's core objective was to collect samples for a future Mars Sample Return (MSR) mission. In addition, JPL ventured into asteroid exploration with

275-589: A resident office at the facility staffed by federal managers who oversee JPL's activities and work for NASA. There are also some Caltech graduate students , college student interns and co-op students. The JPL Education Office serves educators and students by providing them with activities, resources, materials and opportunities tied to NASA missions and science. The mission of its programs is to introduce and further students' interest in pursuing STEM (science, technology, engineering and mathematics) careers. JPL offers research, internship and fellowship opportunities in

330-513: A smaller part of JPL's overall budget, they are integral to fulfilling the diverse set of objectives that these federal agencies oversee. In fiscal year 2022, the laboratory's budget was approximately $ 2.4 billion, with the largest share going to Planetary Science development. In 2024, due to budget misappropriation in Mars Sample Return (MSR), the lab slashed approximately 1000 workers and contractors in preparation to make wave for

385-603: A spare Juno I (a modified Jupiter-C with a fourth stage), the two organizations then launched the United States' first satellite, Explorer 1 , on January 31, 1958. This significant achievement marked a new era for JPL and the US in the space race. Less than a year later in December 1958, JPL was transferred to the newly formed National Aeronautics and Space Administration (NASA). As a result of this transition, JPL became

440-461: A year on a Saturday and Sunday in May or June, when the public was invited to tour the facilities and see live demonstrations of JPL science and technology. More limited private tours are also available throughout the year if scheduled well in advance. Thousands of schoolchildren from Southern California and elsewhere visit the lab every year. Due to federal spending cuts mandated by budget sequestration ,

495-524: Is given annually to an individual or organization that has made significant contributions to public awareness of space programs, in 1998; and with the John L. "Jack" Swigert, Jr., Award for Space Exploration on three occasions – in 2009 (as part of NASA's Phoenix Mars Lander Team ), 2006 and 2005. When it was founded, JPL's site was immediately west of a rocky flood-plain – the Arroyo Seco riverbed – above

550-450: Is subject to annual fluctuations based on both the federal allocation to NASA and the life cycle of ongoing projects. High-profile missions may receive significant long-term funding commitments, whereas smaller or shorter-term projects may have more modest financial support. These agencies often commission projects that leverage JPL's unique expertise in areas like remote sensing , robotics, and systems engineering. Although these projects form

605-530: The Aerojet 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 the same year, Qian and two of his colleagues drafted the first document to use the name Jet Propulsion Laboratory. In a NASA conference on the history of early rocketry, Malina wrote that

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660-630: The Army Ballistic Missile Agency 's Redstone Arsenal in Huntsville, Alabama , to propose orbiting a satellite during the International Geophysical Year . 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 rocket. They carried out three successful sub-orbital flights in 1956 and 1957. Using

715-411: The Arroyo Seco . This initial venture involved Caltech graduate students Frank Malina , Qian Xuesen , Weld Arnold and Apollo M. O. Smith , along with Jack Parsons and Edward S. Forman , often referred to as the "Suicide Squad" due to the dangerous nature of their experiments. Together, they tested a small, alcohol-fueled motor to gather data for Malina's graduate thesis. Malina's thesis advisor

770-657: The Comet Nucleus Sample Return or CNSR (later Rosetta , without the sample return); Pluto Fast Flyby , a flyby of Pluto (later Pluto Kuiper Express , eventually realized as New Horizons ); and a Neptune Orbiter with an atmospheric probe. However, congressionally imposed reductions to FY 1992–93 funding requirements forced NASA to terminate the CRAF mission and to delay the Cassini launch from April 1996 to October 1997. In order to save it, NASA

825-837: The Decadal Surveys . " Science " marks these missions as primarily scientific in nature, under the Science Mission Directorate (SMD), as opposed to, e.g., human exploration missions under the Human Exploration and Operations Mission Directorate (HEOMD). The lines can be blurred, as when the Lunar Reconnaissance Orbiter began as a directed mission from the HEOMD, and was later transferred to the SMD. Flagship missions are not under

880-699: 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 Landmarks . JPL traces its beginnings to 1936 in the Guggenheim Aeronautical Laboratory at the California Institute of Technology (GALCIT) when the first set of United States rocket experiments were carried out in

935-545: The Los Angeles Superior Court took opening statements on the case in which former JPL employee David Coppedge brought suit against the lab due to workplace discrimination and wrongful termination. In the suit, Coppedge alleges that he first lost his "team lead" status on JPL's Cassini-Huygens mission in 2009 and then was fired in 2011 because of his evangelical Christian beliefs and specifically his belief in intelligent design . Conversely, JPL, through

990-752: The MGM-5 Corporal and MGM-29 Sergeant intermediate-range ballistic missiles, marking the first US ballistic missiles developed at JPL. It also developed several 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 , Edwards Air Force Base , and Goldstone, California . In 1954, JPL teamed up with Wernher von Braun 's engineers at

1045-468: The Mariner missions to Venus , Mars , and Mercury , returning valuable data about our neighboring planets. Additionally, JPL was early to employ female mathematicians. In the 1940s and 1950s, using mechanical calculators, women in an all-female computations group performed trajectory calculations. In 1961, JPL hired Dana Ulery as the first female engineer to work alongside male engineers as part of

1100-543: The OSIRIS-REx mission which returned a sample from asteroid Bennu . As JPL moves forward, its focus remains on diverse interplanetary and even interstellar missions. Future Mars missions will aim to return the samples collected by the Perseverance rover back to Earth. Additionally, JPL's Europa Clipper mission launched in 2024 to study Jupiter's moon Europa , believed to harbor a subsurface ocean. Building on

1155-528: The Ranger and Mariner mission tracking teams. Building on the momentum from the successes of the 1960s and early 1970s, JPL initiated an era of deep space exploration in the late 1970s and 1980s. The highlight of this period was the launch of the twin Voyager spacecraft in 1977. Initially set on a trajectory to explore Jupiter and its moon Io, Voyager 1 's mission parameters were adjusted to also provide

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1210-519: The United States Geological Survey (USGS), and the U.S. Department of Defense (DoD). Occasionally, JPL engages in joint missions or research endeavors with international space agencies or research institutions. While these partnerships contribute a relatively small portion of JPL's overall budget, they serve to enhance the scope and impact of its scientific research and technological development. The total budget for JPL

1265-795: The astrophysics , Earth science , heliophysics and planetary science divisions. "Large" refers to the budget of each mission, typically the most expensive mission in the scientific discipline. Within the Astrophysics Division and the Planetary Science Division, the large strategic missions are usually in excess of US$ 1 billion. Within Earth Science Division and Heliophysics Division, the large strategic missions are usually in excess of US$ 500 million. "Strategic" refers to their role advancing multiple strategic priorities set forth in plans such as

1320-479: The inner Solar System , based on commercial Earth satellites, while the Mariner Mark II was to be a series of large spacecraft for the exploration of the outer Solar System . Mariner Mark II spacecraft were to use common design, hardware and software solutions, much of it derived from previous missions such as Voyager and Galileo as well as select new technologies, such as advanced gyroscopes, all with

1375-504: The Department of Commerce, claiming their constitutional rights were being violated by the new, overly invasive background investigations. 97% of JPL employees were classified at the low-risk level and would be subjected to the same clearance procedures as those obtaining moderate/high risk clearance. Under HSPD 12 and FIPS 201, investigators have the right to obtain any information on employees, which includes questioning acquaintances on

1430-569: The Devil's Gate dam in the northwestern panhandle of the city of Pasadena in Southern California , near Los Angeles . While the first few buildings were constructed in land bought from the city of Pasadena, subsequent buildings were constructed in neighboring unincorporated land that later became part of La Cañada Flintridge . Nowadays, most of the 168 acres (68 ha) of the U.S. federal government -owned NASA property that makes up

1485-596: The JPL campus is located in La Cañada Flintridge. Despite this, JPL still uses a Pasadena address (4800 Oak Grove Drive, Pasadena, CA 91109) as its official mailing address. There has been occasional rivalry between the two cities over the issue of which one should be mentioned in the media as the home of the laboratory. After the 2024 layoffs, there are only approximately 5,500 full-time Caltech employees and contractors working on any given day. NASA also has

1540-532: The Los Angeles/southern California area. The predominant source of JPL's financial support is NASA. As a field center of NASA, JPL's primary activities and projects are generally aligned with NASA's mission objectives in space exploration, Earth sciences, and astrophysics. The funding allocated to JPL comes as a portion of NASA's annual budget, which is itself part of the United States federal budget approved by Congress. The scale of

1595-559: The NASA Museum Alliance in 2003 out of a desire to provide museums, planetariums, visitor centers and other kinds of informal educators with exhibit materials, professional development and information related to the then-upcoming landings of the Mars rovers Spirit and Opportunity . The Alliance now has more than 500 members, who get access to NASA displays, models, educational workshops and networking opportunities through

1650-600: The Ninth Circuit found the process violated the employees' privacy rights and issued a preliminary injunction. NASA appealed and the US Supreme Court granted certiorari on March 8, 2010. On January 19, 2011, the Supreme Court overturned the Ninth Circuit decision, ruling that the background checks did not violate any constitutional privacy right that the employees may have had. On March 12, 2012,

1705-659: The Voyager program's success, JPL continues to push the boundaries of deep-space exploration. The Interstellar Probe concept, though not yet formalized, proposes to send a spacecraft ten times the distance from the Sun as Pluto, to explore the interstellar medium and the outermost reaches of our solar system. JPL has been recognized four times by the Space Foundation : with the Douglas S. Morrow Public Outreach Award, which

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1760-540: The agency's primary planetary spacecraft center, leading the design and operation of various lunar and interplanetary missions. The transfer to NASA marked the beginning of a "Golden Age" of planetary exploration for JPL in the 1960s and 1970s. JPL engineers designed and operated Ranger and Surveyor missions to the Moon that paved the way for the Apollo program . JPL proved itself a leader in interplanetary exploration with

1815-656: The aim of cutting costs. It was hoped that this new approach would reduce the mission costs to about $ 400 million each, about half the price of Galileo. The first two missions of the project were to be a mission to Saturn and its moon Titan, the Saturn Orbiter/Titan Probe , or SOTP (later Cassini ) and the Comet Rendezvous Asteroid Flyby (CRAF), both of which were approved by Congress in 1990. Other planned Mariner Mark II-based spacecraft were an ESA led follow-on to CRAF,

1870-481: The budget is contingent on the projects that JPL undertakes as missions can range from flagship interplanetary missions costing billions of U.S. dollars to smaller Earth observation systems with budgets in the hundreds of millions. Aside from NASA, JPL secures funding for specialized projects from other federal agencies, including but not limited to the National Oceanic and Atmospheric Administration (NOAA)

1925-522: The diversity of organizations you represent." The NASA/JPL Educator Resource Center, which is moving from its location at the Indian Hill Mall in Pomona, California, at the end of 2013, offers resources, materials and free workshops for formal and informal educators covering science, technology, engineering and science topics related to NASA missions and science. The lab had an open house once

1980-550: The first successful Mars rover, Sojourner , demonstrating the feasibility of mobile exploration on the Martian surface. In 2004, the Mars Exploration Rovers, Spirit and Opportunity , landed on Mars. Opportunity outlived its expected lifespan by 14 years, providing a wealth of scientific data and setting the stage for future Mars missions. In the 2000s and 2010s, JPL broadened its exploration scope, including

2035-603: The four Great Observatories , only the Spitzer Space Telescope is not a Flagship mission. Initially budgeted at US$ 2 billion, Spitzer was downscoped to a medium-size mission of US$ 720 million. Jet Propulsion Laboratory The Jet Propulsion Laboratory ( JPL ) is a federally funded research and development center (FFRDC) in La Cañada Flintridge, California , Crescenta Valley, United States. Founded in 1936 by Caltech researchers,

2090-554: The laboratory is now owned and sponsored by NASA and administered and managed by the California Institute of Technology . The primary function of the laboratory is the construction and operation of planetary robotic spacecraft , though it also conducts Earth-orbit and astronomy missions. It is also responsible for operating the NASA Deep Space Network (DSN). Among the major active projects at

2145-896: The laboratory, some are the Mars 2020 mission, which includes the Perseverance rover; the Mars Science Laboratory mission, including the Curiosity rover; the Mars Reconnaissance Orbiter ; the Juno spacecraft orbiting Jupiter ; the SMAP satellite for Earth surface soil moisture monitoring; the NuSTAR X-ray telescope ; and the Psyche asteroid orbiter. It is also responsible for managing

2200-610: The launch of missions to study the outer planets, like the Juno mission to Jupiter and the Cassini-Huygens mission to Saturn. Concurrently, JPL also began to focus on Earth science missions, developing satellite technology to study climate change, weather patterns, and natural phenomena on Earth. JPL also opened the Near-Earth Object Program Office for NASA in 1998, which had found 95% of asteroids

2255-542: The nature and dynamics of the outer planets. Both Voyager spacecraft, after fulfilling their primary mission objectives, were directed towards interstellar space , carrying with them the Golden Records – phonograph discs containing sounds and images selected to portray the diversity of life on Earth. The 1980s also saw the inception of the Galileo mission which launched in the late 1980s. The Galileo spacecraft

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2310-565: The nearby motion picture and television industries, by advising them about scientific accuracy in their productions. Science fiction shows advised by JPL include Babylon 5 and its sequel series, Crusade . JPL also works with the Department of Homeland Security Science and Technology Directorate (DHS-S&T). JPL and DHS-S&T developed a search and rescue tool for first responders called FINDER. First responders can use FINDER to locate people still alive who are buried in rubble after

2365-483: The next fiscal year 2025. There is a tradition at JPL to eat "good luck peanuts " before critical mission events, such as orbital insertions or landings. As the story goes, after the Ranger program had experienced failure after failure during the 1960s, the first successful Ranger mission to impact the Moon occurred after a JPL staff member had decided to pass out peanuts to relieve tension. The staff jokingly decided that

2420-535: The open house has been previously cancelled. JPL open house for 2014 was October 11 and 12 and 2015 was October 10 and 11. Starting from 2016, JPL replaced the annual Open House with "Ticket to Explore JPL", which features the same exhibits but requires tickets and advance reservation. Roboticist and Mars rover driver Vandi Verma frequently acts as science communicator at open house type events to encourage children (and particularly girls) into STEM careers. In addition to its government work, JPL has also assisted

2475-445: The peanuts must have been a good luck charm, and the tradition persisted. These are some of the missions partially sponsored by JPL: The JPL Advanced Projects Design Team, also known as Team X, is an interdisciplinary team of engineers that utilizes "concurrent engineering methodologies to complete rapid design, analysis and evaluation of mission concept designs". On February 25, 2005, Homeland Security Presidential Directive 12

2530-736: The program. Staff at educational organizations that meet the Museum Alliance requirements can register to participate online. The Museum Alliance is a subset of the JPL Education Office's Informal Education group, which also serves after-school and summer programs, parents and other kinds of informal educators. On December 9, 2020 , the Museum Alliance officially announced a rebrand to the Museum & Informal Education (MIE) Alliance. In an announcement to members, they said, "Pronounced 'My' Alliance, our new name better reflects

2585-824: The purview of any larger "Flagship Program", unlike, e.g., Discovery-class missions that are under the purview of the Discovery Program . Unlike these competed classes that tender proposals through a competitive selection process, the development of Flagship missions is directed to a specific institution — usually a NASA center or the Jet Propulsion Laboratory — by the Science Mission Directorate . Flagship missions are developed ad-hoc, with no predetermined launch cadence or uniform budget size. Flagship missions are always Class A missions: high priority, very low risk. Of

2640-439: The status of the employee's mental, emotional, and financial stability. Additionally, if employees depart JPL before the end of the two-year validity of the background check, no investigation ability is terminated; former employees can still be legally monitored. Employees were told that if they did not sign an unlimited waiver of privacy, they would be deemed to have "voluntarily resigned". The United States Court of Appeals for

2695-525: The summer and throughout the year to high school through postdoctoral and faculty students. (In most cases, students must be U.S. citizens or legal permanent residents to apply, although foreign nationals studying at U.S. universities are eligible for limited programs.) Interns are sponsored through NASA programs, university partnerships and JPL mentors for research opportunities at the laboratory in areas including technology, robotics, planetary science, aerospace engineering, and astrophysics. In August 2013, JPL

2750-493: The work of the JPL was "considered to include" the research carried out by the GALCIT Rocket Research Group from 1936 on. 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 significant deployed weapon systems,

2805-458: Was approved by the Secretary of Commerce . This was followed by Federal Information Processing Standards 201 ( FIPS 201 ), which specified how the federal government should implement personal identity verification. These specifications led to a need for rebadging to meet the updated requirements. On August 30, 2007, a group of JPL employees filed suit in federal court against NASA, Caltech, and

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2860-486: Was designed to study Jupiter and its major moons in detail. Although the probe only entered the gas giant's orbit in the 1990s, its inception and planning during the 1980s signified JPL's continued commitment to deep space exploration. The 1990s and 2000s saw a resurgence in Mars exploration, driven by JPL's Mars Pathfinder and Mars Exploration Rover missions. In 1997, the Mars Pathfinder mission deployed

2915-573: Was engineer/aerodynamicist Theodore von Kármán , who eventually secured U.S. Army financial support for this "GALCIT Rocket Project" in 1939. In the early years of the project, work was primarily focused on the development of rocket technology. In 1941, Malina, Parsons, Forman, Martin Summerfield , and pilot Homer Bushey demonstrated the first jet-assisted takeoff ( JATO ) rockets to the Army. In 1943, von Kármán, Malina, Parsons, and Forman established

2970-604: Was forced to significantly redesign Cassini to reduce the total program cost, mass and power requirements. NASA has had to replace the Mariner Mark II program with the lower-cost Discovery Program . Flagship Program NASA's large strategic science missions or large strategic missions , formerly known as Flagship missions or Flagship-class missions , are the costliest and most capable NASA science spacecraft. Flagship missions exist within all four divisions of NASA's Science Mission Directorate (SMD):

3025-569: Was named one of "The 10 Most Awesome College Labs of 2013" by Popular Science, which noted that about 100 students who intern at the laboratory are considered for permanent jobs at JPL after they graduate. The JPL Education Office also hosts the Planetary Science Summer School (PSSS), an annual week-long workshop for graduate and postdoctoral students. The program involves a one-week team design exercise developing an early mission concept study, working with JPL's Advanced Projects Design Team ("Team X") and other concurrent engineering teams. JPL created

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