Firefly Aerospace Secures a $1.3 billion Agreement with AST SpaceMobile

On November 6‑7, 2026, Firefly Aerospace Inc. (NASDAQ: FLY) announced a transformative partnership with AST SpaceMobile (NASDAQ: ASTS) that is poised to reshape the commercial launch market. The deal, valued at more than $1.3 billion, grants Firefly the right to supply 36 rocket engines, license the engine intellectual property, and deliver engineering support over a three‑year period for AST’s upcoming heavy‑lift, reusable rocket, Blacklift.

Engine Supply and Licensing

Under the arrangement, Firefly will ship 27 Miranda engines and 9 vacuum‑variant Vira engines to AST for its first three Blacklift vehicles. The Miranda engine, still in development, is intended to power Firefly’s own upcoming launch vehicle, Eclipse. The Vira engine, tailored for the vacuum of space, is likewise earmarked for Eclipse’s upper stage. By licensing the engine technology to AST, Firefly grants its partner the capacity to manufacture the engines in-house, ensuring a more reliable and cost‑effective supply chain.

Funding for Production Acceleration

The contract’s value represents a substantial cash infusion for Firefly, allowing the company to accelerate production of its own launch vehicles and broaden its technology roadmap. The additional capital is expected to fast‑track the development of Eclipse, which is slated for its first flight in 2027, and support Firefly’s broader launch‑vehicle portfolio.

Strategic Implications for the Space Industry

The partnership positions Firefly as a pivotal supplier of high‑performance engines in the emerging reusable‑rocket segment. For AST, the ability to build its own rocket—Blacklift—provides a competitive edge against incumbents such as SpaceX, which dominates the launch market with its Falcon 9 fleet. Blacklift, powered by Firefly engines, is projected to carry up to five of AST’s BlueBird satellites per flight, enabling the company’s vision of delivering global smartphone‑based connectivity from orbit.

Market Reaction

The announcement sent Firefly’s shares soaring nearly 30 % on the day of the deal, with a 36.8 % spike reported by Insider Monkey. At the close of trading on November 5, the stock was at $20.76, down from the 52‑week high of $62.17 but still comfortably above the 52‑week low of $14.45. The market’s rapid response underscores investor confidence in the partnership’s potential to enhance Firefly’s revenue streams and accelerate its growth trajectory.

Conclusion

Firefly Aerospace’s $1.3 billion agreement with AST SpaceMobile marks a significant milestone in the commercial space sector. By delivering engines, licensing technology, and providing engineering expertise, Firefly is not only strengthening its own production pipeline but also empowering a rival to compete with SpaceX’s launch dominance. The deal exemplifies the collaborative and competitive dynamics that are now driving rapid innovation in space launch technology.