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United Launch Alliance

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United Launch Alliance, LLC
Company typeJoint venture
IndustrySpace
FoundedDecember 1, 2006; 18 years ago (2006-12-01)
HeadquartersCentennial, Colorado, United States
Key people
Tory Bruno (CEO)
Products
RevenueUS$1.3 billion (2022)[1]
US$200 million (2022)[1]
OwnerLockheed Martin Space (50%)
Boeing Defense, Space & Security (50%)
Number of employees
2,700 (2024)
Websiteulalaunch.com

United Launch Alliance, LLC (ULA) is an American launch service provider formed in December 2006 as a joint venture between Lockheed Martin Space and Boeing Defense, Space & Security. The company designs, assembles, sells and launches rockets, but the company subcontracts out the production of rocket engines and solid rocket boosters.

When founded, the company inherited the Atlas rocket family from Lockheed Martin and the Delta rocket family from Boeing. As of 2024, the Delta family has been retired and the Atlas V is in the process of being retired. ULA began development of the Vulcan Centaur in 2014 as replacement for both the Atlas and Delta rocket families. The Vulcan Centaur completed its maiden flight in January 2024.

The primary customers of ULA are the Department of Defense (DoD) and NASA, but it also serves commercial clients.

Company history

[edit]

Formation

[edit]

Boeing and Lockheed Martin announced on 2 May 2005 that they would establish a 50/50 joint venture, United Launch Alliance (ULA), to consolidate their space launch operations.[2]

The two companies had long competed for launch services contracts from the DoD, and their Atlas and Delta rockets were the two launch vehicles selected under the Evolved Expendable Launch Vehicle (EELV) program. The DoD had hoped the program would foster the creation of a strong, competitive commercial launch market. However, both companies said that this competition had made space launches unprofitable.[3] Boeing's future in the program was also threatened in 2003 when it was found to be in possession of proprietary documents from Lockheed Martin.[4][5] To end litigation and competition, both companies agreed to form the ULA joint venture. During the renewal of the EELV contract, the DoD said the merger would provide annual cost savings of $100–150 million.[6]

SpaceX attempted to challenge the merger on anti-trust grounds, saying it would create a space launch monopoly.[7] The Federal Trade Commission ultimately granted ULA anti-trust clearance, prioritizing national security access to space over potential competition concerns.[8][9]

Michael Gass era (2005–2014)

[edit]

Michael Gass was announced as the first CEO of ULA and oversaw the merger of the two groups. Production was consolidated into one central plant in Decatur, Alabama while all engineering was moved into a facility in Littleton, Colorado.[10] The parent companies retained responsibility for marketing and sales of the Delta and Atlas rockets.

Cost pressures led ULA to announce it would lay off 350 of its 4,200 workers in early 2009,[11][12] and decommissioned two of its seven launch pads.[6][13] ULA also joined and later left the Commercial Spaceflight Federation during this period.[14][15]

The introduction of lower-cost competition and rising ULA launch costs attracted scrutiny. ULA's reliance on government funding for launch readiness, including maintaining multiple launchpads and rocket variants, became a point of discussion, particularly as the EELV program experienced a cost breach in 2012.[4]

ULA was awarded a DoD contract in December 2013 to provide 36 rocket cores for up to 28 launches. The award drew protest from SpaceX, which said the cost of ULA's launches were approximately US$460 million each and proposed a price of US$90 million to provide similar launches.[16] In response, Gass said ULA's average launch price was US$225 million, with future launches as low as US$100 million.[17]

Tory Bruno era (2014 onward)

[edit]
ULA CEO Tory Bruno at a NASA news conference in December 2019

In a leadership change at ULA in August 2014, Tory Bruno assumed the CEO position, marking a new strategic direction for the company.[18] Under Bruno's leadership, ULA was under pressure to reduce costs to better compete with SpaceX and its partially reusable rockets, replace its Russian-made RD-180 with more efficient western-made engines,[19] and introduce a next-generation launch vehicle. The company's high cost to launch left the company with few commercial and civil satellite launch customers, and increasingly reliant on U.S. military and spy agency contracts.[20][21] After the Russian annexation of Crimea in 2014, Congress passed a law in 2016 that prohibited the military from procuring additional launch services on vehicles that use the RD-180 engine after 2022.[22]

To reduce costs, ULA undertook a significant restructuring to streamlining operations by eventually consolidating from five launchpads to two,[23] and reducing its workforce from 3,600 to 2,500 by 2018.[21][24][25] To develop a new engine, ULA announced it would be partnering with Blue Origin to develop the BE-4.[26] The company also announced the Vulcan, a next-generation launch vehicle, to be funded through a public-private partnership. Bruno believed the Vulcan would offer costs that would make it competitive in the commercial satellite sector.[21]

However, despite these cost-cutting measures, ULA launches continued to be more expensive than those offered by SpaceX.[21] The company's joint bid with Dynetics to develop a lunar lander for NASA was rejected in 2021 with the agency calling the companies bid "low in readiness."[27]

The Delta family of rockets was retired in early 2024, having been replaced in the market by the SpaceX's Falcon Heavy, which was more powerful, less expensive, and faster to build, leading ULA to lose all commercial contracts.[3] ULA planned an orderly retirement and had procured and had in hand 100 of the engines to continue building Atlas V as it developed a replacement rocket. At the time of the announcement they could fly 29 more missions and all of them had been sold, so no new orders would be accepted.

ULA faces an uncertain future. In 2023, the company announced that it was for sale.[28] In December 2023, it was announced that Jeff Bezos was looking at purchasing the company to merge it with Blue Origin, which he also owns.[28][29][30]

Products

[edit]

When the joint venture was founded in 2006, ULA inherited the Atlas rocket family from Lockheed Martin and the Delta rocket family from Boeing. As of 2024, the Delta family has been retired and the Atlas V is in the process of being retired. ULA began development of the Vulcan Centaur in 2014 as replacement for both the Atlas and Delta rocket families.[31]

Vulcan Centaur

[edit]
Vulcan Centaur
Main article: Vulcan Centaur

The Vulcan Centaur is a heavy-lift launch vehicle developed by ULA integrating technology from both its prior Atlas and Delta rocket families along with advancements. Vulcan has been designed to meet the requirements of the National Security Space Launch (NSSL) program and be capable of achieving human-rating certification to allow the launch of a vehicle such as the Boeing Starliner or Sierra Nevada Dream Chaser.[32]

The rocket was developed as ULA faced pressure to respond to growing competition from SpaceX[33] and its reusable rockets and the need to phase out the RD-180 engine used on the Atlas V, which is built in Russia, and subject to international sanctions after the Russian invasion of Ukraine.[34]

The Vulcan Centaur has a maximum liftoff thrust of 3,800,000 pounds-force (17,000 kN), enabling it to carry 56,000 pounds (25,000 kg) to low Earth orbit, 33,000 lb (15,000 kg) to a geostationary transfer orbit, and 16,000 lb (7,300 kg) to geostationary orbit.[35]

The Vulcan first stage is the same size as the Delta family's Common Booster Core, uses two BE-4 engines built by Blue Origin and fueled by liquid oxygen and liquid methane (liquefied natural gas).[36] The second stage is the Centaur V, an improved version of the Centaur III used on the Atlas, which is powered by two RL10 engines built by Aerojet Rocketdyne, fueled by liquid hydrogen and liquid oxygen. The first stage can be supplemented by up to six GEM 63XL solid rocket boosters built by Northrop Grumman.

ULA is investigating a way to partially reuse its launch vehicles with the Sensible Modular Autonomous Return Technology (SMART) system. This system envisions jettisoning the BE-4 engines and avionics as a single unit which would be protected by an inflatable heat shield during its descent back to Earth. After being slowed by parachutes and splashing down in the ocean, the heat shield would double as a raft, and the engines and avionics module would be retrieved for refurbishment. ULA estimates that this approach could reduce the cost of producing the first stage of its rockets by 65%.[37]

Development of the Vulcan Centaur has been funded as a public–private partnership with the U.S. government contributing approximately US$1.2 billion toward initial development costs.[38] Boeing and Lockheed Martin are expected to contribute the remaining cost of development, estimated at 75% of the cost, as of March 2018.[39][40]

The NSSL program purchased a prototype Vulcan launch in October 2018,[38] and was awarded a contract in August 2020 to launch 60% of NSSL missions over a 5-year period beginning in 2024.[41]

The Vulcan Centaur was originally slated to conduct its maiden flight in 2019, however was delayed repeatedly. The inaugural flight occurred on January 8, 2024,[31] successfully sending the Peregrine lunar lander into orbit toward the moon.[42][43] This launch was intended to allow Astrobotic Technology to conduct five lunar experiments for NASA.[43]

ULA completed a second test flight, named Cert-2, of the Vulcan Centaur on the morning of October 4, 2024 at Cape Canaveral. The Space Force will examine the flight data to determine if Vulcan Centaur will be certified for national security missions.[44]

Atlas V

[edit]
Atlas V N22 launches Boeing Starliner Calypso on the Boeing Crew Flight Test
Main article: Atlas V

Developed by Lockheed Martin and transitioned to ULA in 2006,[45] the Atlas V has been ULA's primary launch vehicle for over two decades. However, the rocket is currently nearing retirement, with all remaining flights booked and no new orders accepted. As of July 2024, Atlas V has completed 101 missions,[46] with 15 launches scheduled.[47] The rocket has been offered in eleven configurations, though only the "551" and "N22" remain operational.

Born from the National Security Space Launch (NSSL) program, the Atlas V's first successful launch took place in 2002.[48] This expendable launch system utilizes a two-stage design. The first stage, named the Common Core Booster, uses a single Russian-made RD-180 engine, fueled by kerosene and liquid oxygen.[49] The second stage, a Centaur III powered by the RL10 engine burning liquid hydrogen and liquid oxygen. The first stage can be supplemented by up to five AJ-60A or GEM 63 solid rocket boosters.

The Atlas V has undergone modifications for human spaceflight, specifically for Boeing's Starliner capsule. These modifications include upgraded computers for monitoring and abort capabilities, data links, and manual abort mechanisms for the crew. Notably, Starliner missions use a unique Atlas V configuration: two solid rocket boosters, no payload fairing, and a dual-engine Centaur second stage for a shallower launch profile and reduced crew G-forces. This configuration stands 172 feet tall, and ULA was contracted for nine Starliner missions with Atlas V.[50]

Interim Cryogenic Propulsion Stage

[edit]
ICPS for Artemis I while under construction
Main article: Delta Cryogenic Second Stage § Interim Cryogenic Propulsion Stage

The Interim Cryogenic Propulsion Stage (ICPS) provides the second stage boost for the initial configuration (Block 1) of NASA's Space Launch System (SLS). The ICPS design was based on the Delta Cryogenic Second Stage employed by ULA's Delta launch vehicles. The ICPS is positioned atop the SLS core stage and directly below the Orion spacecraft.[51] The ICPS has a cylindrical liquid hydrogen tank, structurally designed to bear launch loads, while the liquid oxygen and single RL10B-2 engine are suspended from the hydrogen tank and are covered by the interstage during launch.[52] Only three ICPS stages were ever built, one for each of the Artemis I, II, and III missions. Following these missions, the ICPS will be replaced by the Exploration Upper Stage built by Boeing.

Retired

[edit]

Delta II

[edit]
Main article: Delta II

Delta II was an expendable launch system that was originally designed and built by McDonnell Douglas,[53] and was later built by Boeing prior to the formation of ULA. Delta II was part of the Delta rocket family and entered service in 1989. ULA flew thirty missions using Delta II starting in 2006. Delta II vehicles included the Delta 6000 and the two later Delta 7000 variants ("Light" and "Heavy"). The rocket flew its final mission ICESat-2 on 15 September 2018.[54][55] A nearly-complete Delta II, made from flight-qualified spare parts, is displayed in its 7320-10 configuration in the rocket garden at Kennedy Space Center Visitors Complex.[56][57]

Delta IV

[edit]
Main article: Delta IV

Delta IV is a group of five expendable launch systems in the Delta rocket family, which was introduced in the early 2000s.[58][59] The Delta IV was originally designed by Boeing's Defense, Space & Security division for the Evolved Expendable Launch Vehicle (EELV) program, and became a ULA product in 2006. The Delta IV was mostly used for launching United States Air Force military payloads but was also used to launch a number of U.S. government non-military payloads and one commercial satellite.[60][54][61] Delta IV had two main versions, which allowed the family to accommodate a range of payload sizes and masses; models includes Medium, which had four configurations, and the Heavy. Payloads that would previously fly on Medium moved to either Atlas V or Vulcan Centaur.[62][63]

Delta IV Heavy

[edit]
Main article: Delta IV Heavy

Delta IV Heavy was the largest member of the Delta IV family. Boeing flew it on one mission prior to the formation of ULA, and ULA on fifteen missions from 2007 to 2024. Its final launch was April 9, 2024 at Cape Canaveral Space Force Station.[64][65][66] The Delta IV Heavy combined a 5 m (16 ft) diameter DCSS and payload fairing with two additional CBCs. These are strap-on boosters which are separated earlier in the flight than the center CBC. The 5 meter diameter composite fairing was standard on the Delta IV Heavy,[67] with an aluminum isogrid fairing also available. The aluminum trisector (three-part) fairing was built by Boeing and derived from a Titan IV fairing.[68] The trisector fairing was first used on the DSP-23 flight.[69] Delta IV Heavy had 16 launches in its lifetime.[64][70][71]

Launch history

[edit]
Main articles: List of Delta II launches, Atlas V § Atlas V launches, Delta IV § Delta IV launches, and Vulcan Centaur § Vulcan Centaur launches
2
4
6
8
10
12
14
16
18
20
2006[a]
2010
2015
2020
  •   Atlas V
  •   Delta II
  •   Delta IV Medium
  •   Delta IV Heavy
  •   Vulcan Centaur

Statistics are up-to-date as of 4 October 2024.

  1. ^ ULA launch. Prior launches were by Boeing or Lockheed Martin.

2006–2009

[edit]
Ignition of the engines of a Delta II

The first launch conducted by ULA was a Delta II from Vandenberg Space Force Base on 14 December 2006,[72] carrying the satellite USA-193 for the National Reconnaissance Office.[73][74][75][76] The satellite failed shortly after launch and was intentionally destroyed on 21 February 2008, by an SM-3 missile that was fired from the Ticonderoga-class cruiser USS Lake Erie.[73] ULA's first Atlas V launch was in March 2007; it was an Atlas V variant 401 launching six military research satellites for Space Test Program (STP) 1. This mission also performed three burns of the Centaur upper stage; it was the first three-burn mission for Atlas V.

ULA's first commercial mission COSMO-SkyMed was launched on behalf of Italy's Ministry of Defense three months later using a Delta II rocket.[74] On June 15, 2007, the engine in the Centaur upper stage of a ULA-launched Atlas V shut down early, leaving its payload – a pair of NROL-30 ocean surveillance satellites – in a lower than intended orbit.[77] The NRO declared the launch a success.[78]

2007 also saw ULA's first two interplanetary spacecraft launches using the Delta II; the Phoenix probe was launched to Mars in August 2007 and the Dawn satellite to was launched to the asteroids Vesta and Ceres in September 2007.[79][80] Using a Delta II, the WorldView-1 satellite was also launched into a low Earth orbit on behalf of DigitalGlobe. The company's first launch to geostationary transfer orbit using an Atlas V 421 variant carrying the USA-195 (or WGS-1) communications satellite also occurred that year.[74][81] ULA's tenth mission was launching satellite GPS IIR-17 into medium Earth orbit on a Delta II.[74] The company completed its first Delta IV launch using the Delta IV Heavy rocket to place a payload into geosynchronous orbit in November 2007, which was followed by three more launches in December 2007.[74]

2008 saw seven launches, including Atlas V's from Vandenberg's Space Launch Complex 3E and five others using the Delta II.[74] The Atlas launch carried NROL-28 in March 2008[82] and in September 2008 the GeoEye-1 satellite was orbited by a Delta II rocket.[83] ULA completed eight Delta II, five Atlas V, and three Delta IV launches in 2009.[74] The Delta II launches carried three Space Tracking and Surveillance System satellites over two launches, two Global Positioning System satellites,[84] and the NOAA-19 and WorldView-2 satellites,[85][86] as well as the Kepler and the Wide-field Infrared Survey Explorer space telescopes.[74][87]

The Atlas launches carried the Lunar Reconnaissance Orbiter and LCROSS mission as part of the Lunar Precursor Robotic Program, which was later intentionally crashed into the Moon and found the existence of water;[88] other 2009 Atlas V launches in included Intelsat 14, WGS-2,[81] PAN, and a weather satellite as part of the Defense Meteorological Satellite Program (DMSP). The Delta IV rockets carried the NROL-26, GOES 14,[89] and WGS-3 satellites.[81][74]

2010–2014

[edit]

In 2010, Atlas V launches deployed the Solar Dynamics Observatory, the first Boeing X-37B, the first Advanced Extremely High Frequency (AEHF) satellite, and the NROL-41. The Delta II system placed the last COSMO-SkyMed and Delta IV launches deployed the GOES 15, GPS Block IIF, and USA-223 satellites.[74][90] ULA completed eleven launches in 2011, including five by Atlas, three by Delta II, and three by Delta IV. The Atlas system orbited another Boeing X-37, two NROL-34 signals intelligence satellites,[91] a Space-Based Infrared System (SBIRS) satellite, the Juno spacecraft and Curiosity rover.[74][92] The Delta II launches placed the SAC-D and Suomi NPP satellites into orbit,[93] as well as two spacecraft associated with NASA's GRAIL lunar mission. Delta IV launches carried the NROL-49, NROL-27,[94] and another GPS satellite.[74]

ULA's 2012 launches included six Atlas Vs and four Delta IVs. The Atlas system carried Mobile User Objective System (MUOS) and AEHF satellites, another Boeing X-37, the Intruder and Quasar satellites, and the Van Allen Probes. Delta IVs deployed GPS and WGS satellites USA-233,[95][96] as well as NROL-25[97] and NROL-15 on behalf of the National Reconnaissance Office.[74][98]

In 2013, the Atlas flew eight times.[99] The system launched the TDRS-11,[100] Landsat 8, AEHF-3, and NROL-39 satellites, as well as SBIRS, GPS, and MUOS satellites, as well as NASA's MAVEN space probe to Mars. Delta IV launches orbited the fifth and sixth Wideband Global SATCOM satellites WGS-5 and WGS-6,[101] as well as NROL-65.[74][95][102]

In 2014, ULA's Atlas V orbited the TDRS-12 communications satellite in January,[103] the WorldView-3 commercial satellite in August 2014,[104][105] and the CLIO communications satellite during September and October 2014.[82] Atlas rockets also carried the satellites DMSP-5D-3/F19, NROL-67, NROL-33, and NROL-35.[82] Delta IV rockets orbited GPS satellites and two Geosynchronous Space Situational Awareness Program satellites, and in July 2014, NASA's Orbiting Carbon Observatory 2 was carried by a Delta II.[82] Orion's first test flight was launched by a Delta IV Heavy rocket in December 2014, as part of Exploration Flight Test-1.[106]

2015–2019

[edit]

A Delta II rocket orbited a Soil Moisture Active Passive satellite in January 2015.[107] In March 2015, an Atlas V rocket carried NASA's Magnetospheric Multiscale Mission spacecraft,[108][109] and a Delta IV rocket orbited the GPS IIF-9 satellite on behalf of the U.S. Air Force.[110][111] The U.S. Air Force's X-37B spaceplane was carried by an Atlas V rocket in May 2015,[112] and a Delta IV orbited the WGS-7 satellite in July 2015.[113] The fourth MUOS satellite was orbited by an Atlas V in September 2015.[114][115] ULA's 100th consecutive successful liftoff was completed on 2 October 2015, when an Atlas V rocket orbited a Mexican Satellite System communications satellite on behalf of the Secretariat of Communications and Transportation.[106] The classified NROL-55 satellite was launched by an Atlas V rocket several days later.[116] Atlas V rockets launched GPS Block IIF satellites and the Cygnus cargo spacecraft in November 2015 and December 2015, respectively.[117][118][119]

In 2016, Delta IV rockets carried the NROL-45 satellite and Air Force Space Command 6 mission in February 2016 and August 2016, respectively.[120][121] During a launch of the Atlas V rocket on 22 March 2016, a minor first-stage anomaly led to shutdown of the first-stage engine approximately five seconds before anticipated. The Centaur upper stage was able to compensate by firing for approximately one minute longer than planned using its reserved fuel margin.[122][123] Atlas V rockets carried MUOS-5 in June 2016,[124][125] NROL-61 satellites in July 2016,[126][127] and the OSIRIS-REx spacecraft in September 2016.[128]

ULA launched multiple satellites in late 2016. The weather satellite Geostationary Operational Environmental Satellite (GOES-R) was carried in November 2016,[129][130] as was the WorldView-4 imaging satellite.[131] In December 2016, the Wideband Global SATCOM's eighth satellite WGS-8 was launched on a Delta IV Medium rocket,[130][132] and an Atlas V carried the EchoStar XIX communications satellite on behalf of Hughes Communications.[133][134] In March 2017, WGS-9 was orbited by a Delta IV.[81][135] Atlas V rockets carried NRO satellites,[136][137][138] TDRS-M,[139] and a Cygnus cargo capsule in 2017.[140] The weather satellite NOAA-20 (JPSS-1) was launched by a Delta II rocket in November 2017.[86][141]

Delta IV Heavy launch with the Parker Solar Probe

An Atlas V carried the SBIRS-GEO 4 military satellite in January 2018.[142] The Atlas V's launch of NASA's InSight to Mars in 2018 was the first interplanetary probe to depart from the U.S. West Coast.[79] In August 2018, a Delta IV Heavy launched Parker Solar Probe, NASA's solar space probe that was to visit and study the Sun's outer corona in August 2018.[143] It was also the Delta IV Heavy with a Star-48BV kick stage,[144] and the highest-ever spacecraft velocity.[145] The company launched the final Delta II rocket, carrying ICESat-2 from Vandenberg Air Force Base SLC-2 on 15 September 2018. This marks the last launch of a Delta family rocket based on the original Thor IRBM.[55] On 22 August 2019, ULA launched its last Delta IV Medium rocket for the GPS III Magellan project.[146] An Atlas V carried Boeing's Starliner Orbital Flight Test (OFT) mission for NASA in December 2019.[147]

2020

[edit]

In 2020, an Atlas V carried the Solar Orbiter spacecraft, an international collaboration between the European Space Agency (ESA) and NASA to provide a new global view of the Sun.[148] In March 2020, an Atlas V also launched Advanced Extremely High Frequency 6 (AEHF-6), the first U.S. Space Force National Security Mission.[149][150] In May 2020, ULA launched an Atlas V rocket carrying the USSF-7 mission with the X-37B spaceplane for the U.S Space Force and the mission honored victims of the COVID-19 pandemic as well as first responders, health professionals, military personnel, and other essential workers.[151] On 30 July 2020, Atlas V in the 541 configuration successfully launched Perseverance and Ingenuity as part of Mars 2020 towards Mars.[152] In November 2020, ULA launched NROL-101, a top secret spy satellite for the National Reconnaissance Office, on board their Atlas V in a 531 configuration. This launch was notable because it was the first flight of the GEM-63 solid rocket boosters, a version of which will be used on their Vulcan Centaur launch vehicle.[153]

2021

[edit]

On 18 May 2021, the SBIRS GEO 5 missile-warning satellite was launched on an Atlas V 421 rocket.[154][155][156]

The launch on 16 October 2021 at 5:34 am EDT

The Lucy spaceflight began on 16 October 2021 upon launch aboard a United Launch Alliance Atlas V 401 rocket[157] into a stable parking orbit. During the next hour, the second stage reignited to place Lucy on an interplanetary trajectory in a heliocentric orbit on a twelve-year mission to two groups of Sun-Jupiter Lagrange point Trojan asteroids as well as a close flyby of a mainbelt asteroid during one of three planned passes through the asteroid belt. If the spacecraft remains operational during the 12-year planned duration, it is likely the controlled flight will be continued and directed at additional asteroid targets.[158]

Infrastructure

[edit]

Launch facilities

[edit]
ULA's Horizontal Integration Facility at CCSFS in February 2018

As of June 2024, ULA operates two launch facilities: Space Launch Complex 41 at the Cape Canaveral Space Force Station in Cape Canaveral, Florida[159][160] and Space Launch Complex 3 at the Vandenberg Space Force Base near Lompoc, California.[161][162] The Cape Canaveral facility is equipped with a crew access arm for loading manned vehicles. Launches from Cape Canaveral typically head east to give satellites extra momentum from the rotation of the Earth as they head to other planets or into an equatorial orbit. Vandenberg is the primary U.S. launch site from which imaging and weather satellites are sent into polar orbits to cover the entire globe.[163]

Since its foundation in 2006, ULA has significantly reduced its number of launch facilities from seven to the current two. At Cape Canaveral it previously operated two pads at Space Launch Complex 17 and one pad at Space Launch Complex 37 for Delta launches.[81][164] At Vandenburg, it previously operated one pad at Space Launch Complex 2[165] and another at Space Launch Complex 6 for Delta launches.[166][167]

Headquarters and manufacturing

[edit]
ULA's headquarters building in Centennial, Colorado

ULA's headquarters in Centennial, Colorado is responsible for program management, rocket engineering, testing, and launch support functions.[168] ULA's largest factory is 1.6 million square feet (150,000 m2) and located in Decatur, Alabama.[169] In 2015, the company announced the opening of an engineering and propulsion test center in Pueblo, Colorado.[170]

Until 2024, the company previously operated a factory in Harlingen, Texas to fabricate and assemble components for the Atlas V rocket.[171]

Spaceflight Processing Operations Center

[edit]

The Spaceflight Processing Operations Center (SPOC), located near Cape Canaveral Space Launch Complex 41 is used to construct the mobile launcher platform (MLP) for the Vulcan Centaur. It also serves as a storage area for the Atlas V MLP.[172] On 6 August 2019, the first two parts of Vulcan's MLP were transported to the SPOC.[173] SPOC was formerly known as the Solid Motor Assembly and Readiness Facility (SMARF) during its support of the Titan IVB launch vehicle; it was renamed during a ceremony in October 2019.[172]

See also

[edit]
Other launch vehicle providers

References

[edit]
  1. ^ a b Smith, Rich (23 March 2023). "United Launch Alliance Is For Sale: How Much Is It Worth?". The Motley Fool. Retrieved 17 June 2024.
  2. ^ "Boeing, Lockheed Martin to Form Launch Services Joint Venture". United Launch Alliance. 2 May 2005. Archived from the original on 17 April 2019. Retrieved 17 April 2019.
  3. ^ a b Kurkowski, Seth (9 April 2024). "Why is ULA retiring the Delta IV Heavy?". Space Explored. Retrieved 17 June 2024.
  4. ^ a b "National Security Space Launch at a Crossroads" (PDF). Congressional Research Service. 13 May 2016. Retrieved 5 August 2020.
  5. ^ Bowermaster, David (9 January 2005). "Boeing probe intensifies over secret Lockheed papers". Seattle Times. Archived from the original on 12 March 2017. Retrieved 7 May 2020.
  6. ^ a b Berger, Eric (2 August 2017). "How America's two greatest rocket companies battled from the beginning". Ars Technica. Retrieved 18 April 2020.
  7. ^ Morris, David Z. (17 June 2017). "Is SpaceX Undercutting the Competition Even More Than Anyone Thought?". Fortune. Archived from the original on 25 January 2019. Retrieved 17 April 2020.
  8. ^ "FTC gives clearance to United Launch Alliance". Spaceflight Now. 3 October 2006.
  9. ^ Mergers and Acquisitions: Understanding the Antitrust Issues (3rd ed.). Chicago, Illinois: ABA Section of Antitrust Law. 2008. ISBN 978-1-60442-046-3. OCLC 213864774.
  10. ^ Erwin, Sandra; Henry, Caleb (24 January 2018). "To stay competitive in the launch business, ULA courts commercial customers". SpaceNews. Retrieved 25 June 2018.
  11. ^ "United Launch Alliance plans layoffs". Denver Business Journal. 14 November 2008. Retrieved 16 November 2014.
  12. ^ Avery, Greg (5 August 2009). "ULA seeks land for a combined HQ". Denver Business Journal. Retrieved 16 November 2014.
  13. ^ Graham, William (2 July 2014). "ULA Delta II successfully lofts OCO-2 to orbit". NASA Spaceflight. Retrieved 22 February 2015.
  14. ^ "Membership". Commercial Spaceflight Federation. 13 May 2014. Archived from the original on 13 May 2014. Retrieved 7 May 2020.
  15. ^ Johnson, Alexandra (21 June 2010). "United Launch Alliance Joins the Commercial Spaceflight Federation". Commercial Spaceflight Federation. Retrieved 7 May 2020.
  16. ^ Leopold, George (28 April 2014). "SpaceX launches protest of Air Force rocket contract". Defense Systems. Archived from the original on 6 October 2014. Retrieved 3 October 2014.
  17. ^ Gurss, Mike (20 May 2014). "Responding to Critics, ULA Discloses Pricing Information". SpaceNews. Archived from the original on 23 May 2014.
  18. ^ Gruss, Mike (12 August 2014). "United Launch Alliance Taps a Lockheed Executive To Replace CEO Gass". SpaceNews. Archived from the original on 13 August 2014. Retrieved 13 August 2014.
  19. ^ Petersen, Melody (12 December 2014). "Congress OKs bill banning purchases of Russian-made rocket engines". Los Angeles Times. Archived from the original on 7 March 2017. Retrieved 14 December 2014. Costs of launching military satellites has skyrocketed under contracts the Air Force has given to United Launch Alliance. The average cost for each launch using rockets from Boeing and Lockheed has soared to US$420 million, according to an analysis by the Government Accountability Office.
  20. ^ Shalal, Andrea (21 May 2015). "Lockheed-Boeing rocket venture needs commercial orders to survive". Yahoo! News. Archived from the original on 23 July 2015.
  21. ^ a b c d Avery, Greg (16 October 2014). "ULA plans new rocket, restructuring to cut launch costs in half". Denver Business Journal. Archived from the original on 15 March 2017. Retrieved 14 November 2014.
  22. ^ Erwin, Sandra (19 August 2021). "National security launch in transition as Space Force waits for Vulcan". Space News. Retrieved 16 June 2024.
  23. ^ Butler, Amy (17 February 2015). "New Rocket, White Tails In ULA's Long-Term Strategy". Aviation Week. Archived from the original on 5 June 2017. Retrieved 22 February 2015. [the] plan to field a new rocket engine with Blue Origin called the BE-4 is only step one of a larger strategic plan to take the company from a sole-source benefactor mentality to competing in a burgeoning commercial market ... The Atlas V and Delta IV ... both have a limited future.
  24. ^ Delgado, Laura M. (14 November 2014). "ULA's Tory Bruno Vows To Transform Company". Space Policy Online. Archived from the original on 29 November 2014. Retrieved 14 November 2014.
  25. ^ "About ULA". United Launch Alliance. Archived from the original on 10 February 2019. Retrieved 17 April 2019.
  26. ^ Ferster, Warren (17 September 2014). "ULA To Invest in Blue Origin Engine as RD-180 Replacement". SpaceNews. Archived from the original on 18 September 2014. Retrieved 13 December 2014.
  27. ^ Foust, Jeff (16 April 2021). "NASA selects SpaceX to develop crewed lunar lander". SpaceNews. Archived from the original on 23 May 2021. Retrieved 20 November 2022.
  28. ^ a b Whitwam, Ryan (22 February 2024). "Blue Origin May Buy United Launch Alliance, Putting Pressure on SpaceX". Extreme Tech. Retrieved 6 March 2024.
  29. ^ "Jeff Bezos Looks to Acquire Rocket Giant ULA In Latest Billionaire Space Race Move". Observer. 21 December 2023. Retrieved 6 March 2024.
  30. ^ Berger, Eric (21 February 2024). "Blue Origin has emerged as the likely buyer for United Launch Alliance". Ars Technica. Retrieved 6 March 2024.
  31. ^ a b Roulette, Joey (13 June 2024). "Blue Origin, SpaceX and United Launch Alliance picked for Pentagon rocket launch contracts". Reuters. Retrieved 17 June 2024.
  32. ^ Bruno, Tory [@torybruno] (30 August 2016). "@A_M_Swallow @ULA_ACES We intend to human rate Vulcan/ACES" (Tweet). Retrieved 30 August 2016 – via Twitter.
  33. ^ Heidler, Scott (26 June 2023). "ULA's Vulcan Centaur Rocket needs fix before launch". WESH. Retrieved 6 August 2024.
  34. ^ Easley, Mikayla (5 August 2022). "U.S. Kicking Russian Rocket Engines to the Curb". National Defense. Retrieved 6 August 2024.
  35. ^ "Vulcan Launch Systems User's Guide" (PDF). October 2023. Archived (PDF) from the original on 16 April 2024.
  36. ^ Clark, Stephen (21 May 2021). "United Launch Alliance nears first fueling test on Vulcan rocket". Space Flight Now. Retrieved 8 June 2021.
  37. ^ Klotz, Irene (17 April 2020). "Economics of Rocket Reuse Still Up in the Air". Aviation Week & Space Technology. Retrieved 17 August 2020.
  38. ^ a b Erwin, Sandra (10 October 2018). "Air Force awards launch vehicle development contracts to Blue Origin, Northrop Grumman, ULA". SpaceNews. Retrieved 28 July 2020.
  39. ^ Gruss, Mike (10 March 2016). "ULA's parent companies still support Vulcan …with caution". SpaceNews. Retrieved 11 March 2016.
  40. ^ Erwin, Sandra (25 March 2018). "Air Force stakes future on privately funded launch vehicles. Will the gamble pay off?". SpaceNews. Retrieved 24 June 2018.
  41. ^ Erwin, Sandra (9 August 2020). "Air Force to end agreements with Blue Origin and Northrop Grumman, prepares for launch contract protests". SpaceNews. Retrieved 15 August 2020.
  42. ^ Foust, Jeff (8 January 2024). "Vulcan Centaur launches Peregrine lunar lander on inaugural mission". SpaceNews. Retrieved 7 February 2024.
  43. ^ a b Chang, Kenneth (7 January 2024). "Vulcan Rocket's Inaugural Launch Carries Moon Lander to Space". The New York Times. ISSN 0362-4331. Retrieved 17 June 2024.
  44. ^ Foust, JEff (4 October 2024). "Vulcan competes second flight despite SRB anomaly". SpaceNews. Retrieved 4 October 2024.
  45. ^ Roulette, Joey (6 January 2024). "Vulcan rocket's space debut will be crucial for Boeing-Lockheed venture as sale talks loom". Reuters. Retrieved 17 June 2024.
  46. ^ Clark, Stephen (30 July 2024). "With a landmark launch, the Pentagon is finally free of Russian rocket engines". Ars Technica. Retrieved 2 August 2024.
  47. ^ updated, Mike Wall last (29 July 2024). "Atlas V rocket launches its final national security mission for US military (video)". Space.com. Retrieved 2 August 2024.
  48. ^ Davenport, Justin (29 July 2024). "Atlas V successfully launched its last ever national security mission". NASASpaceFlight.com. Retrieved 6 August 2024.
  49. ^ Berger, Eric (11 December 2018). "Getting Vulcan up to speed: Part one of our interview with Tory Bruno". Ars Technica. Retrieved 12 December 2018. Centaur 3 (which flies on the Atlas V rocket) is 3.8 meters in diameter. The very first Centaur we fly on Vulcan will go straight to 5.4 meters in diameter.
  50. ^ Clark, Stephen (6 November 2019). "ULA begins stacking unique Atlas 5 rocket for Starliner test flight". Spaceflight Now. Retrieved 6 August 2020.
  51. ^ Mohon, Lee (27 July 2017). "Interim Cryogenic Propulsion Stage Moves to Space Station Processing Facility". NASA. Retrieved 7 July 2021.
  52. ^ Braeunig, Robert A. (2 November 2009). "Space Launchers — Delta". Rocket and Space Technology. Retrieved 26 January 2012.
  53. ^ Nola Taylor Tillman (27 September 2018). "Delta II Rocket: 30 Years of Launches". Space.com. Retrieved 6 August 2024.
  54. ^ a b Bartels, Meghan (13 September 2018). "Meet the Delta Rocket Family of the United Launch Alliance". Space.com. Retrieved 2 September 2020.
  55. ^ a b "Delta II concludes amazing legacy with ICESat-2 launch". NASA Spaceflight. 15 September 2018. Retrieved 16 September 2018.
  56. ^ "Leftover Delta 2 rocket to go on display at Kennedy Space Center". Spaceflight Now. Archived from the original on 29 January 2019. Retrieved 17 September 2018.
  57. ^ Joy, Rachel (23 March 2021). "New rocket on display at Kennedy Space Center Visitor Complex". Florida Today. Retrieved 23 March 2021.
  58. ^ "Delta IV". Astronautix.com. Archived from the original on 19 August 2016. Retrieved 15 August 2020.
  59. ^ "Countdown 101: Delta IV". NASA. Archived from the original on 20 October 2021. Retrieved 15 August 2020. Public Domain This article incorporates text from this source, which is in the public domain.
  60. ^ Grush, Loren (22 August 2019). "Watch as ULA launches the final flight of its Delta IV Medium rocket". The Verge. Retrieved 2 September 2020.
  61. ^ "Fuel Control Valve Faulted for Atlas Launch Anomaly". Universe Today. 30 April 2016. Retrieved 29 October 2020.
  62. ^ Gebhardt, Chris (22 August 2019). "Delta IV Medium's well-earned retirement with GPS finale". NASA Spaceflight. Retrieved 15 August 2020.
  63. ^ "Historical Snapshot: Delta Rockets". Boeing. Retrieved 29 October 2020.
  64. ^ a b "Delta IV Heavy set for its final flight from Cape Canaveral, but weather remains a concern". Florida Today. Retrieved 28 March 2024.
  65. ^ "Delta IV Heavy rocket launch from Cape Canaveral: How to stream our space coverage on iPhone, TV". Florida Today. Retrieved 28 March 2024.
  66. ^ Heidler, Scott (27 March 2024). "Delta IV Heavy: Powerful rocket to take final flight from Cape Canaveral Space Force Station". WESH. Retrieved 28 March 2024.
  67. ^ "Delta IV Heavy Demonstration Flight Mission Information" (PDF). Boeing. 6 June 2005. Archived from the original (PDF) on 6 October 2012.
  68. ^ "Delta IV Payload Planners Guide" (PDF). United Launch Alliance. September 2007. pp. 1–7. Archived from the original (PDF) on 22 July 2011.
  69. ^ "Fact Sheet: Evolved Expendable Launch Vehicle". U.S. Air Force Space Command. 2 November 2010. Archived from the original on 27 April 2014.
  70. ^ Clark, Stephen (27 March 2024). "The Delta IV Heavy, a rocket whose time has come and gone, will fly once more". Ars Technica. Retrieved 28 March 2024.
  71. ^ Robert Z. Pearlman (9 April 2024). "'Heavy' history: ULA launches final Delta rocket after 64 years (video, photos)". Space.com. Retrieved 11 April 2024.
  72. ^ "United Launch Alliance set for takeoff". Metro Denver EDC. Archived from the original on 18 March 2008. Retrieved 10 October 2009.
  73. ^ a b "DoD Succeeds In Intercepting Non-Functioning Satellite" (Press release). U.S. Department of Defense. 20 February 2008. Retrieved 9 October 2009. Public Domain This article incorporates text from this source, which is in the public domain.
  74. ^ a b c d e f g h i j k l m n Graham, William; Bergin, Chris (18 September 2013). "United Launch Alliance celebrate 75 launch milestone". NASA Spaceflight. Retrieved 6 June 2018.
  75. ^ Bergin, Chris (15 June 2015). "TRMM spacecraft completes destructive re-entry over South Indian Ocean". NASA Spaceflight. Retrieved 16 July 2018.
  76. ^ Jones, Sam (20 November 2015). "Satellite wars". Financial Times. Archived from the original on 11 December 2022. Retrieved 26 July 2018.
  77. ^ Morring, Frank Jr. (22 June 2007). "NRO Shortfall May Delay Upcoming ULA Missions". Aviation Week. Archived from the original on 5 February 2012. Retrieved 3 March 2022.
  78. ^ "NRO L-30 Launch Update" (PDF). National Reconnaissance Office. 18 June 2007. Archived from the original (PDF) on 17 February 2013. Public Domain This article incorporates text from this source, which is in the public domain.
  79. ^ a b Graham, William (5 May 2018). "Atlas V launches first West Coast interplanetary mission with InSight spacecraft to Mars". NASA Spaceflight. Retrieved 16 July 2018. Launched by a Delta II rocket in August 2007, Phoenix touched down on Mars on 25 May 2008.
  80. ^ Wall, Mike (29 September 2017). "Happy Anniversary, Dawn! Record-Setting NASA Probe Marks 10 Years in Space". Space.com. Retrieved 16 July 2018. NASA's Dawn spacecraft launched atop a United Launch Alliance Delta II rocket on 27 September 2007.
  81. ^ a b c d e Graham, William (18 March 2017). "ULA Delta IV successfully launches WGS-9". NASA Spaceflight. Retrieved 16 July 2018.
  82. ^ a b c d Graham, William (12 December 2014). "Atlas V launches NROL-35 out of Vandenberg". NASA Spaceflight. Retrieved 16 July 2018.
  83. ^ Shalal-Esa, Andrea (6 September 2008). "GeoEye launches high-resolution satellite". Reuters. Retrieved 16 July 2018.
  84. ^ Graham, William (17 August 2009). "Last GPS IIR satellite launched on final SLC-17A Delta II". NASA Spaceflight. Retrieved 16 July 2018.
  85. ^ "ULA Delta II launches on third attempt with NASA's NOAA-N Prime". NASA Spaceflight. 4 February 2009. Retrieved 16 July 2018. A United Launch Alliance Delta II rocket has launched with the NASA NOAA-N Prime spacecraft at the third attempt to launch from Space Launch Complex-2 at Vandenberg Air Force Base in California – at 02:22 a.m. PST – following two scrubs due to technical issues.
  86. ^ a b Bergin, Chris (18 November 2017). "Delta II launches on penultimate mission with JPSS-1". NASA Spaceflight. Retrieved 16 July 2018.
  87. ^ Graham, William (14 December 2009). "ULA Delta II successfully launches with WISE". NASA Spaceflight. Retrieved 16 July 2018.
  88. ^ "LCROSS Impact Data Indicates Water on Moon". NASA. 13 November 2009. Archived from the original on 5 April 2012. Retrieved 14 April 2020. Public Domain This article incorporates text from this source, which is in the public domain.
  89. ^ Graham, William (27 June 2009). "Delta IV launches with GOES-O weather satellite". NASA Spaceflight. Retrieved 16 July 2018. The launch of a United Launch Alliance Delta IV rocket, carrying the GOES-O weather satellite for the United States National Oceanic and Atmospheric Administration, has launched on Saturday, following Friday's scrub due to unacceptable weather.
  90. ^ Graham, William (21 November 2010). "Delta IV Heavy launches with NROL-32". NASA Spaceflight. Retrieved 16 July 2018. The United Launch Alliance (ULA) Delta IV vehicle has launched the classified NROL-32 payload for the United States National Reconnaissance Office from Space Launch Complex 37B, Cape Canaveral, at 17:58 EST.
  91. ^ Graham, William (14 April 2011). "ULA Atlas V launches with NROL-34 payload". NASA Spaceflight. Retrieved 16 July 2018.
  92. ^ Graham, William (5 August 2011). "ULA Atlas V launches NASA's Juno on a path to Jupiter". NASA Spaceflight. Retrieved 16 July 2018. United Launch Alliance (ULA) have launched their Atlas V carrying NASA's Juno probe on its way to Jupiter on Friday.
  93. ^ Graham, William (10 June 2011). "ULA Delta II launches with the SAC-D spacecraft". NASA Spaceflight. Retrieved 16 July 2018. The United Launch Alliance (ULA) have launched their Delta II rocket to loft the SAC-D spacecraft into orbit for the Argentine space agency, CONAE, on Friday.
  94. ^ Graham, William (11 March 2011). "Delta IV dodges upper level winds and launches with NROL-27 satellite". NASA Spaceflight. Retrieved 16 July 2018.
  95. ^ a b Graham, William (24 May 2013). "ULA Delta IV successfully lofts WGS-5 satellite". NASA Spaceflight. Retrieved 16 July 2018.
  96. ^ Graham, William (19 January 2012). "ULA Delta IV successfully launches the fourth WGS spacecraft". NASA Spaceflight. Retrieved 16 July 2018. United Launch Alliance have conducted the United States' first orbital launch of the year on Thursday, when their Delta IV launched with the fourth Wideband Global Satcom spacecraft.
  97. ^ Graham, William (3 April 2012). "ULA Delta IV launches the NROL-25 military satellite from VAFB". NASA Spaceflight. Retrieved 16 July 2018. A new Delta IV configuration has made its first flight Tuesday, carrying the NROL-25 payload for the United States National Reconnaissance Office.
  98. ^ Graham, William (29 June 2012). "Delta IV Heavy launches NROL-15 from Cape Canaveral". NASA Spaceflight. Retrieved 16 July 2018. The United Launch Alliance (ULA) Delta IV rocket has made its twentieth launch Friday morning from Space Launch Complex 37B at the Cape Canaveral Air Force Station, carrying the classified NROL-15 payload for the United States National Reconnaissance Office.
  99. ^ Graham, William (29 October 2014). "ULA Atlas V successfully launches with GPS IIF-8 satellite". NASA Spaceflight. Retrieved 16 July 2018.
  100. ^ Graham, William (30 January 2013). "ULA Altas V successfully launches with TDRS-K". NASA Spaceflight. Retrieved 16 July 2018.
  101. ^ Graham, William (7 August 2013). "ULA Delta IV launches with WGS-6 satellite". NASA Spaceflight. Retrieved 16 July 2018.
  102. ^ "United Launch Alliance chief says he wants to develop a fleet of "space trucks" to ferry people between Earth and moon". The Denver Post. 7 April 2017. Retrieved 15 June 2018.
  103. ^ Graham, William (23 January 2014). "ULA opens 2014 campaign with Atlas V launch of TDRS-L". NASA Spaceflight. Retrieved 16 July 2018. United Launch Alliance successfully conducted their first mission of 2014 Thursday evening, with an Atlas V deploying NASA's latest Tracking and Data Relay Satellite, TDRS-L.
  104. ^ Graham, William (13 August 2014). "ULA Atlas V launches WorldView-3 satellite out of Vandenberg". NASA Spaceflight. Retrieved 16 July 2018. United Launch Alliance (ULA) conducted a commercial Atlas V launch on Wednesday on behalf of Lockheed Martin, orbiting DigitalGlobe's WorldView-3 imaging satellite.
  105. ^ "WorldView-3 Satellite Will Upgrade Google's Earth Images". NBC News. 12 August 2014. Retrieved 16 July 2018.
  106. ^ a b Wall, Mike (2 October 2015). "Dazzling Rocket Launch Marks 100th Liftoff for United Launch Alliance". Space.com. Retrieved 12 July 2018.
  107. ^ Kramer, Miriam (31 January 2015). "NASA Launches Satellite to Get the Dirt on Earth's Dirt". Space.com. Retrieved 17 July 2018.
  108. ^ Graham, William (12 March 2015). "MMS successfully launched by ULA's Atlas V". NASA Spaceflight. Retrieved 17 July 2018.
  109. ^ Cofield, Calla (13 March 2015). "Spectacular Night Launch Sends NASA Satellites on Hunt for Magnetic Collisions". Space.com. Retrieved 17 July 2018.
  110. ^ Graham, William (25 March 2015). "ULA Delta IV successfully launches GPS IIF-9". NASA Spaceflight. Retrieved 17 July 2018.
  111. ^ Wall, Mike (26 March 2015). "US Air Force Launches Advanced GPS Satellite into Orbit". Space.com. Retrieved 17 July 2018.
  112. ^ Wall, Mike (20 May 2015). "US Air Force Launches X-37B Space Plane on 4th Mystery Mission". Space.com. Retrieved 17 July 2018.
  113. ^ Gruss, Mike (23 July 2015). "Delta 4 Launches 7th WGS satellite". SpaceNews. Retrieved 17 July 2018.
  114. ^ Dean, James (2 September 2015). "Atlas V delivers military satellite to orbit". USA Today. Retrieved 17 July 2018.
  115. ^ Powers, Scott (2 September 2015). "Atlas V liftoff creates cloud of confusion". Orlando Sentinel. Retrieved 17 July 2018.
  116. ^ "Launch Photos: NROL-55 Spy Satellite and Cubesats Blast Off". Space.com. 8 October 2015. Retrieved 17 July 2018.
  117. ^ Gruss, Mike (2 November 2015). "U.S. Air Force Launches 11th GPS 2F Satellite". SpaceNews. Retrieved 17 July 2018.
  118. ^ "Rocket carries US supplies to International Space Station". BBC News. 7 December 2015. Retrieved 17 July 2018.
  119. ^ Lewin, Sarah (6 December 2015). "Cygnus Spaceship Launch Restarts Orbital ATK Cargo Missions for NASA". Space.com. Retrieved 17 July 2018.
  120. ^ Graham, William (9 February 2016). "ULA Delta IV launches with NROL-45". NASA Spaceflight. Retrieved 17 July 2018.
  121. ^ Graham, William (19 August 2016). "ULA Delta IV successfully launches AFSPC-6 mission". NASA Spaceflight. Retrieved 17 July 2018.
  122. ^ Ray, Justin (24 March 2016). "Atlas 5 rocket forced to improvise during Tuesday's climb to orbit". SpaceFlight Now. Retrieved 24 March 2016.
  123. ^ "United Launch Alliance Successfully Launches OSIRIS-REx Spacecraft for NASA". United Launch Alliance. 8 September 2016. Retrieved 10 September 2016.
  124. ^ Cofield, Calla (24 June 2016). "Military Satellite Launched Into Orbit by United Launch Alliance". Space.com. Retrieved 17 July 2018.
  125. ^ Gruss, Mike (24 June 2016). "Atlas 5 returns to flight with launch of Navy's MUOS-5". SpaceNews. Retrieved 17 July 2018.
  126. ^ Wall, Mike (28 July 2016). "New American Spy Satellite Launches on Secret Mission". Space.com. Retrieved 17 July 2018.
  127. ^ Gruss, Mike (28 July 2016). "Atlas 5 launches NRO mission from the Cape". SpaceNews. Retrieved 17 July 2018.
  128. ^ Wall, Mike (8 September 2016). "Next Stop, Bennu! NASA Launches Bold Asteroid-Sampling Mission". Space.com. Retrieved 17 July 2018.
  129. ^ Wall, Mike (20 November 2016). "Next-generation weather satellite launches to begin forecasting "revolution"". SpaceNews. Retrieved 17 July 2018.
  130. ^ a b Santana, Marco (7 December 2016). "Delta IV rocket carrying Air Force satellite launches from Cape Canaveral". Orlando Sentinel. Archived from the original on 11 December 2016. Retrieved 12 July 2018.
  131. ^ Graham, William (10 November 2016). "Atlas V launches WorldView-4 out of Vandenberg". NASA Spaceflight. Retrieved 16 July 2018. The United Launch Alliance (ULA) Atlas V rocket – interrupted by a wildfire – finally conducted a rare commercial launch on Friday, tasked with orbiting the WorldView-4 Earth-imaging satellite in a mission from Vandenberg Air Force Base, California.
  132. ^ Graham, William (7 December 2016). "ULA Delta IV launches WGS-8 satellite". NASA Spaceflight. Retrieved 16 July 2018. United Launch Alliance (ULA) has launched a Delta IV rocket on Wednesday evening, carrying the eighth satellite in the U.S. Air Force's Wideband Global Satcom system.
  133. ^ Graham, William (18 December 2016). "Atlas V completes ULA's 2016 with EchoStar XIX launch". NASA Spaceflight. Retrieved 16 July 2018. United Launch Alliance launched its last Atlas V rocket of 2016 Sunday, deploying the EchoStar XIX commercial communications satellite for Hughes Netwebsite Systems.
  134. ^ Dean, James (18 December 2016). "Atlas V rocket launches EchoStar 19 satellite". Florida Today. Retrieved 17 July 2018.
  135. ^ Harwood, William (18 March 2017). "Delta 4 rocket launches powerful military satellite". CBS News. Retrieved 17 July 2018.
  136. ^ Harwood, William (1 March 2017). "Atlas 5 rocket launches secret military payload". CBS News. Retrieved 17 July 2018.
  137. ^ Etherington, Darrell (1 March 2017). "United Launch Alliance successfully launches an Atlas V with U.S. reconnaissance satellite on board". TechCrunch. Retrieved 17 July 2018.
  138. ^ Hardwood, William (15 October 2017). "Fifth time's the charm for Atlas rocket and NRO". CBS News. Retrieved 17 July 2018.
  139. ^ Graham, William (18 August 2017). "ULA Atlas V launches TDRS-M out of Cape Canaveral". NASA Spaceflight. Retrieved 16 July 2018.
  140. ^ Klotz, Irene (18 April 2017). "Atlas V Rocket Launches Private Cygnus Cargo Ship to Space Station". Space.com. Retrieved 17 July 2018.
  141. ^ Harwood, William (18 November 2017). "NASA launches powerful polar weather satellite". CBS News. Retrieved 16 July 2018.
  142. ^ Graham, William (19 January 2018). "Atlas V launches with SBIRS GEO-4". NASA Spaceflight. Retrieved 16 July 2018. United Launch Alliance's Atlas V has launched on her seventy-fifth flight, lofting the SBIRS GEO-4, a missile early warning satellite.
  143. ^ Bartels, Meghan (12 August 2018). "Launch Photos! NASA's Parker Solar Probe Blasts Off to Touch the Sun". Space.com. Retrieved 13 May 2020.
  144. ^ Clark, Stephen (18 March 2015). "Delta 4-Heavy selected for launch of solar probe". Spaceflight Now. Retrieved 18 March 2015.
  145. ^ "NASA Press Kit: Parker Solar Probe" (PDF). NASA. Retrieved 15 August 2018. Public Domain This article incorporates text from this source, which is in the public domain.
  146. ^ "United Launch Alliance Successfully Launches GPS III Satellite for U.S. Air Force Space and Missile Systems Center". United Launch Alliance. 22 August 2019.
  147. ^ Wall, Mike (18 December 2019). "Boeing's 1st Starliner and Atlas V Rocket Arrive at Pad for Friday Launch". Space.com. Retrieved 13 May 2020.
  148. ^ Thompson, Amy (10 February 2020). "Solar Orbiter launches on historic mission to study the sun's poles". Space.com. Retrieved 13 May 2020.
  149. ^ Erwin, Sandra (26 March 2020). "ULA's Atlas 5 launches AEHF-6 communications satellite in its first mission for U.S. Space Force". SpaceNews. Retrieved 27 March 2020.
  150. ^ Thompson, Amy (26 March 2020). "US launches advanced satellite in 1st Space Force national security mission". Space.com. Retrieved 27 March 2020.
  151. ^ Cross, Theresa (17 May 2020). "ULA Successfully Launches Atlas V, X-37B Spaceplane". Spaceflight Insider. Retrieved 15 July 2020.
  152. ^ Gebhardt, Chris (29 July 2020). "Perseverance, Ingenuity begin seven month journey to Mars". NASA Spaceflight. Retrieved 31 July 2020.
  153. ^ Graham, William (13 November 2020). "Atlas V successfully launches NROL-101". NASA. Retrieved 22 November 2020. Public Domain This article incorporates text from this source, which is in the public domain.
  154. ^ Strout, Nathan (29 March 2021). "America's next missile warning satellite arrives in Florida". C4ISR. Retrieved 6 April 2021.
  155. ^ "United Launch Alliance Successfully Launches SBIRS GEO Flight 5 Mission in Support of National Security". United Launch Alliance. 18 May 2021. Retrieved 24 May 2021.
  156. ^ United Launch Alliance [@ulalaunch] (18 May 2021). "MISSION SUCCESS! United Launch Alliance's #AtlasV deploys #SBIRSGEO5 for the U.S. Space Force's Space and Missile Systems Center..." (Tweet). Retrieved 24 May 2021 – via Twitter.
  157. ^ Warren, Haygen (16 October 2021). "NASA, ULA launch historic Lucy mission". NASA Spaceflight. Retrieved 26 October 2021.
  158. ^ Derek 'DK' Knabenbauer, Haygen Warren, Chris Gebhardt, and Stephen Marr (15 October 2021). Asteroid Hunter: Lucy's Journey to the Trojan Asteroids. NASA Spaceflight (video). Retrieved 26 October 2021.
  159. ^ Graham, William (29 August 2012). "Atlas V launches at the third attempt with RBSP spacecraft". NASA Spaceflight. Retrieved 5 June 2018.
  160. ^ Graham, William (15 October 2017). "Atlas V successfully launches with NROL-52". NASA Spaceflight. Retrieved 5 June 2018.
  161. ^ Graham, William (14 April 2018). "ULA Atlas V successfully launches with AFSPC-11". NASA Spaceflight. Retrieved 30 July 2018.
  162. ^ Howell, Elizabeth (9 April 2018). "Atlas V: Reliable, Flexible Rocket". Space.com. Retrieved 5 June 2018.
  163. ^ Dean, James (31 December 2017). "Southbound? Cape rockets may fly new path toward poles". Florida Today. Retrieved 13 November 2018.
  164. ^ Graham, William (27 May 2010). "Delta IV finally launches with GPS IIF SV-1 following scrubs". NASA Spaceflight. Retrieved 5 June 2018.
  165. ^ Foust, Jeff (2 May 2018). "Firefly Aerospace to take over Vandenberg Delta 2 pad". SpaceNews. Retrieved 22 November 2020.
  166. ^ Howell, Elizabeth (21 September 2016). "Vandenberg: West Coast Launch Site". Space.com. Retrieved 5 June 2018.
  167. ^ Clark, Stephen (23 September 2002). "Historic launch pad faces uncertain future after final West Coast Delta 4 mission – Spaceflight Now". Retrieved 25 June 2023.
  168. ^ Avery, Greg (5 April 2010). "United Launch Alliance to stay in Centennial area at expanded HQ campus". Denver Business Journal. Retrieved 9 August 2018.
  169. ^ Clines, Keith (26 February 2017). "ULA rocket plant a boost to Decatur's image". The Decatur Daily. Retrieved 13 November 2018.
  170. ^ Wallace, Alicia (24 July 2015). "Pueblo lands United Launch Alliance rocket R&D operation". The Denver Post. Retrieved 13 November 2018.
  171. ^ Kelley, Rick (14 April 2017). "ULA to cut workforce by 875 workers". Valley Morning Star. Retrieved 13 November 2018.[permanent dead link‍]
  172. ^ a b "Construction milestone achieved for Vulcan's launch platform". United Launch Alliance. 24 October 2019. Retrieved 28 March 2020.
  173. ^ @ToryBruno (6 August 2019). "Mighty Atlas is not the only thing rolling at the Cape today. Check the new Vulcan MLP arrival" (Tweet) – via Twitter.
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