AST SpaceMobile to Build Own 20-Ton Rocket to Deploy BlueBird Satellites in Low Earth Orbit Using Miranda Engines from Firefly Aerospace
AST SpaceMobile, Inc. (ASTS) filed an SEC Form 8-K — Regulation FD Disclosure. Exhibit 99.1 *Firefly CEO Jason Kim and AST SpaceMobile Chairman and CEO Abel Avellan in front of Firefly’s Miranda engine at its Rocket Ranch in Briggs, Texas; Credit: Firefly Aerospace AST SpaceMobile to Build Own 20-Ton Rocket to Deploy BlueBird Satellites in Low Earth Orbit U
How this was made
The 30-second read
Why it matters
The announcement represents a strategic shift toward end‑to‑end launch capability, potentially improving cost structure and revenue diversification for both companies.
Market read
First disclosure of a multi‑hundred‑million‑dollar vertical integration deal in the commercial space sector.
What to watch
Potential regulatory hurdles for a new launch vehicle and competition from established launch providers.
Background
SEC Form 8‑K filing by AST SpaceMobile detailing a new rocket development partnership with Firefly Aerospace.
Ticker impact
AST SpaceMobile announced it will build its own 20‑ton Blacklift rocket and will pay $800 M upfront plus $250 M for three engines and $250 M for engineering support.
likely upside as investors price in reduced launch expenses and new revenue streams
Large upfront cash outlay and engine licensing indicate a strategic shift; market typically rewards such integration.
Firefly Aerospace will supply Miranda and Vira engines for AST SpaceMobile's Blacklift rocket under a $500 M multi‑year agreement.
likely pressure to the upside as the deal adds to Firefly's order backlog
A multi‑hundred‑million dollar engine supply deal is material for Firefly's growth outlook.
Market effects
Could accelerate vertical integration trends in the small‑sat and launch services sector.
May boost US‑based aerospace manufacturing outlook.
Highlights US leadership in commercial space launch capabilities.
Counterpoint
Execution risk and high capital outlay could strain AST's balance sheet, weighing on the stock.
Key entities
- companyAST SpaceMobile, Inc.
Developer of space‑based cellular broadband network.
- companyFirefly Aerospace
Provider of liquid‑propellant rocket engines.





