[4] The OmegA design was similar to the defunct Ares I and Liberty projects, both of which consisted of a five segment Space Shuttle Solid Rocket Booster (SRB) and a cryogenic second stage.

[5] OmegA was proposed as a vehicle to launch national security satellites for the United States Space Force and other government agencies, including to geostationary transfer orbit.

[7][6] In October 2018, the Air Force announced that Northrop Grumman was awarded $792 million for initial development of the OmegA launch vehicle.

[9] On 9 September 2020, Northrop Grumman Space Systems released a statement announcing the cancellation of the OmegA launch vehicle program.

[11] The company that was to propose the OmegA launch vehicle in 2016, Orbital ATK (which was subsequently acquired by Northrop Grumman in 2018), through its predecessor company Alliant Techsystems (ATK),[12] had developed the solid rocket boosters for the Space Shuttle in the 1970s–1980s, and military Intercontinental ballistic missiles (ICBMs) prior to that.

They were successful, as NASA selected ATK's technology for the Ares I crewed launch vehicle in 2005, with ATK supplying a five-segment solid rocket booster as the first stage while also being the primary contractor for the Crew Launch Vehicle (CLV), which was to have a more standard liquid-propellant powered upper stage.

[14] In January 2016 they were successful again when Orbital ATK was one of two companies awarded funds by the United States Air Force to develop technologies to eliminate dependency on the Russian-made RD-180 rocket engine for U.S. national security payloads.

[15][needs update] In May 2016, Orbital ATK revealed their plans for the Next Generation Launcher, including the configuration and the intended business case.

[5] The Next Generation Launcher intends to make use of existing launch infrastructure at Kennedy Space Center (KSC), including the Vehicle Assembly Building used by the Space Shuttle, with the possibility of polar orbit launches occurring from Vandenberg Air Force Base.

NASA began looking for commercial users to operate unused space within the Vehicle Assembly Building in June 2015, and by April 2016, it was announced that Orbital ATK was in negotiations to lease High Bay 2.

There were intended to be two version of the main rocket stack, plus variable 2 to 6 SRBs attached to the first stage to assist with the entire variety of NSSL reference orbits.