Firefly Aerospace announced Nov. 28 the first test of its Miranda engine that will be used on the Antares 330 and MLV launch vehicles. Credit: Firefly Aerospace WASHINGTON — Firefly Aerospace ...

The Miranda engine will replace its Russian-built predecessor on the upcoming Antares 330 rocket. Firefly Aerospace conducted the first hot fire test of its new Miranda rocket engine, producing a ...

As a next step, the Firefly team will build up to a full-duration, 206-second Miranda hot fire. Once qualified, seven Miranda engines (each capable of producing 230,000 lbf or 1.6 million lbf in ...

On the ground, Firefly is designing Miranda engines to be able to perform multiple burns on a single flight, a capability it will need for propulsive landings. Engineers are testing MLV's ...

Late last month, Firefly announced that Northrop Grumman has invested $50 million into accelerating the development of the ...

And for MLV, Kim said Firefly took that "great engine technology" and "scaled it up to become Miranda, so you're not starting from scratch" with a new engine. "We're making huge strides on MLV ...

A new version of the rocket called the Antares 330 will use seven of Texas-based Firefly’s Miranda engines on a redesigned first-stage the company is also developing. Firefly’s work on Antares ...

CEDAR PARK, Texas, April 23, 2025 (GLOBE NEWSWIRE) -- Firefly Aerospace, the leader in end-to-end responsive space services, today announced the company was awarded a contract from the Air Force ...

And for MLV, Kim said Firefly took that "great engine technology" and "scaled it up to become Miranda, so you're not starting from scratch" with a new engine. "We're making huge strides on MLV ...