Omega
A canceled Northrop Grumman medium-to-heavy-lift rocket concept designed primarily for United States national security launches.
Last updated August 31, 2026
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Overview
Omega, stylized as OmegA, was a proposed three-stage orbital launch vehicle developed first by Orbital ATK and later by Northrop Grumman. It was conceived to support the United States Air Force's effort to replace reliance on the Russian RD-180 engine for national security space launches and to compete in the National Security Space Launch program. The vehicle was intended principally for military and other government payloads, although its architecture could theoretically have accommodated commercial missions. The concept grew out of Orbital ATK's long-standing work with large solid-propellant rocket motors. Its heritage included Alliant Techsystems' and Orbital ATK's involvement in Space Shuttle solid rocket boosters, proposed Ares I and Liberty launch vehicles, and other efforts to preserve and modernize solid-rocket manufacturing and launch capabilities after the planned retirement of the Space Shuttle. In 2016, Orbital ATK received an Air Force technology-development award connected with the Next Generation Launcher effort. The work included development of technologies associated with GEM-63XL strap-on boosters, a common booster core, and an extendable nozzle for an upper-stage engine. Orbital ATK publicly described the Next Generation Launcher configuration in 2016 and subsequently announced the Omega name in 2018. The proposed system combined solid-propellant stages with a cryogenic liquid-hydrogen/liquid-oxygen upper stage. Earlier plans considered Blue Origin's BE-3U engine, but Orbital ATK selected Aerojet Rocketdyne's RL-10C for the upper stage. Two principal versions were contemplated: an Intermediate configuration and a Heavy configuration. The design could also use varying numbers of strap-on solid rocket boosters to serve different reference orbits and payload requirements. Omega was intended to use existing United States launch infrastructure. Launch operations were planned from Kennedy Space Center Launch Complex 39B, with the possibility of launches from Vandenberg Air Force Base's Space Launch Complex 6 for missions requiring different orbital inclinations. Orbital ATK also explored use of Kennedy's Vehicle Assembly Building and related facilities. The rocket was approximately 59.84 meters tall in the published concept, with a first and second stage diameter of about 3.71 meters and a wider upper-stage diameter of about 5.25 meters. Published target performance varied by configuration, with the Intermediate vehicle described as capable of carrying roughly 4,900 to 10,100 kilograms to geostationary transfer orbit and the Heavy vehicle designed for different geostationary and translunar performance objectives. Northrop Grumman acquired Orbital ATK in 2018, bringing Omega into Northrop Grumman's space-launch portfolio. In October 2018, the Air Force awarded Northrop Grumman a Launch Services Agreement valued at approximately $791.6 million for design, development, and preparation to launch the vehicle. A static-fire test in May 2019 exposed a serious first-stage nozzle problem. The investigation attributed the failure to unexpected differential pressure after the test, when external pressure crushed the nozzle as thrust declined. Northrop Grumman offered Omega for the National Security Space Launch Phase 2 procurement covering launches planned for the 2022–2027 period. In August 2020, the Department of the Air Force selected SpaceX and United Launch Alliance instead. The government stated that it would wind down remaining Omega development work and would not necessarily pay the full maximum value of the earlier agreement. Northrop Grumman subsequently announced on September 9, 2020 that it was canceling the Omega program. No Omega vehicle reached flight, and the brand therefore remains associated with a discontinued launch-vehicle development program rather than an operational rocket family.
History
Omega emerged from Orbital ATK's effort to adapt its extensive solid-rocket experience to a new generation of orbital launch vehicles. The company's predecessors had supplied major solid-propellant systems, including Space Shuttle boosters, and had pursued successor concepts such as Ares I and Liberty. These activities reflected an effort to preserve industrial capacity and secure government-supported uses for large solid rocket technology after the Space Shuttle era. In January 2016, Orbital ATK became one of two companies receiving United States Air Force funding to develop technologies intended to end national-security dependence on the Russian RD-180 engine. The award supported work relevant to the proposed Next Generation Launcher, including GEM-63XL boosters, a common booster core, and an extendable nozzle associated with an upper-stage engine. Orbital ATK also considered using existing Kennedy Space Center infrastructure, including the Vehicle Assembly Building and Launch Complex 39B, while retaining the possibility of Vandenberg launches for missions requiring polar or other high-inclination trajectories. The company detailed the Next Generation Launcher concept in 2016 and identified a range of possible configurations and missions. In April 2017, it described a plan to use Launch Complex 39B and share certain infrastructure with NASA's Space Launch System. In April 2018, the vehicle received the Omega name. The design used solid-propellant first and second stages together with a cryogenic upper stage. Orbital ATK selected the RL-10C engine over Blue Origin's BE-3U and described Intermediate and Heavy versions with different solid-stage arrangements and payload capabilities. Northrop Grumman acquired Orbital ATK in 2018, after which Omega became a Northrop Grumman program. In October of that year, the Air Force awarded a Launch Services Agreement of approximately $791.6 million for design, development, and launch preparation. Development encountered a major technical setback in May 2019 during a first-stage static-fire test. The solid rocket stage itself was not destroyed, but its nozzle failed after the test. Investigators concluded that external pressure became greater than anticipated as internal pressure and thrust fell, crushing the nozzle. Northrop Grumman continued to offer Omega for the Air Force's National Security Space Launch Phase 2 procurement. The competition sought launch services for national-security missions in the 2022–2027 period. On August 7, 2020, the Department of the Air Force selected SpaceX and United Launch Alliance and excluded Omega. The department said it would wind down the remaining Phase 1 development work and determine when to terminate the outstanding agreement. On September 9, 2020, Northrop Grumman Space Systems announced cancellation of the Omega launch vehicle program. Because the vehicle was canceled before its first launch, its historical significance lies in its attempted combination of heritage solid-rocket technology, new composite stages, and a government-backed national-security launch business model.
- 2020
National Security Space Launch Phase 2 loss
[1]The Air Force chose SpaceX and United Launch Alliance rather than Omega for the Phase 2 launch-services procurement.
- 2020
Program canceled
[1]Northrop Grumman announced the cancellation of Omega on September 9, ending development before any orbital flight.
- 2019
Static-fire nozzle anomaly
[1]A first-stage static-fire test produced an unexpected nozzle failure, prompting an investigation and design review.
- 2018
Vehicle renamed Omega
[1]The Next Generation Launcher received the Omega name, and the RL-10C was selected for its cryogenic upper stage.
- 2018
Northrop Grumman acquisition of Orbital ATK
[1]The acquisition transferred the Omega program to Northrop Grumman.
- 2018
Launch Services Agreement awarded
[1]The Air Force awarded Northrop Grumman an agreement worth approximately $791.6 million for Omega development and launch preparation.
- 2017
Launch Complex 39B plan announced
[1]Orbital ATK identified Kennedy Space Center Launch Complex 39B as the primary planned launch site, with possible Vandenberg operations.
- 2016
Air Force technology-development award
[1]Orbital ATK received initial United States Air Force funding for technologies supporting the proposed Next Generation Launcher and reducing dependence on the RD-180 engine.
- 2016
Next Generation Launcher concept disclosed
[1]Orbital ATK presented the vehicle's proposed architecture, launch infrastructure, and business case.
Products and positioning
A government-oriented national-security launch system based on advanced solid-rocket technology and a cryogenic upper stage.
Orbital launch vehicle
Omega Intermediate
The Intermediate configuration was planned as a solid-propellant launch vehicle with a smaller first-stage arrangement, a solid second stage, and a cryogenic upper stage. It was intended for a broad range of national-security and government missions, with published target performance reaching approximately 10,100 kilograms to geostationary transfer orbit in the highest stated configuration.
Heavy-lift orbital launch vehicle
Omega Heavy
The Heavy configuration was designed around a larger Castor 1200-powered first stage and a solid second stage, supported by a cryogenic upper stage. It was intended to provide higher-energy performance for geostationary and potentially translunar missions, with published concept figures including up to approximately 7,800 kilograms to geostationary orbit and 12,300 kilograms for a translunar-injection mission.
Brand decisions
2020
Omega development canceled after procurement lossStrategyBackground
The Department of the Air Force selected SpaceX and United Launch Alliance for National Security Space Launch Phase 2 and did not select Omega.
Action taken
The Air Force began winding down remaining development agreements, and Northrop Grumman announced the program's cancellation.
Aftermath
Omega never flew, and Northrop Grumman's national-security launch strategy proceeded without the vehicle.
2018
Omega name and architecture announcedProduct launchBackground
Orbital ATK was refining the Next Generation Launcher for government and national-security missions.
Action taken
The company adopted the Omega name, selected the RL-10C upper-stage engine, and described Intermediate and Heavy configurations.
Aftermath
The program proceeded under Northrop Grumman after its acquisition of Orbital ATK.
Recent events
Thankful raises $12 million in Series A funding[2]
Reported:
Thankful announced a $12 million Series A funding round led by Alpha Edison, with several other investors participating.
OMEGA launches Chronoscope watch[3]
Reported:
OMEGA launched its Chronoscope watch, a stainless-steel model featuring tachymeter, telemeter and pulsometer dials.
- Unconfirmed
OMEGA launches America’s Cup limited-edition watch[4]
Reported:
OMEGA introduced a limited-edition Seamaster Planet Ocean watch commemorating the 36th America’s Cup; the article states that production is limited to 2,021 pieces.
OMEGA introduces two gold Speedmaster 38 mm models[5]
Reported:
OMEGA introduced two new Speedmaster 38 mm watch models in 18K gold, with different gold tones and strap and dial designs.
Omega announces new eyewear collection[6]
Reported:
Omega's new eyewear collection, comprising 11 models and produced in Italy, was announced as available from April 1, 2020. The article describes the collection as an upcoming release.
- Unconfirmed
Ethos opens two boutiques in Jaipur[7]
Reported:
Ethos Limited, a subsidiary of KDDL, launched two boutiques at World Trade Park in Jaipur: a Rado Boutique and an Omega Boutique.
OMEGA releases 007 Edition Seamaster Diver 300M[8]
OMEGA released a 007 Edition of its Seamaster Diver 300M watch. The article reports that the watch was planned to arrive in OMEGA boutiques the following February.
Sources10 sources
- 1Omega (rocket)en.wikipedia.org
- 2Thankful 获得 1,200 万美元 A 轮融资prnewswire.com
- 3OMEGA推出Chronoscope腕表vman.com
- 4OMEGA推出美洲杯限量腕表chinatimes.com
- 5OMEGA推出两款黄金Speedmaster 38毫米腕表vmagazine.com
- 6Omega宣布推出新款眼镜系列esquire.com
- 7Ethos在斋浦尔开设两家精品店equitybulls.com
- 8OMEGA 推出 007 特别版 Seamaster Diver 300Maskmen.com
- 9Omega Launches NASA-Qualified Speedmaster Moonwatch Collection with Price Starting at $34,800techtimes.com
- 10OMEGA Launches New Trio of Constellation Watches with Leather Bands - V Magazinevman.com
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