Active
Alpha
Small-lift two-stage orbital launch vehicle for dedicated commercial, civil, and national-security missions.
Firefly AerospaceEclipse
In Development
Reusable medium-lift launch vehicle co-developed with Northrop Grumman for commercial, civil, and national-security missions, launching from Virginia's Mid-Atlantic Regional Spaceport.
Latest update Oct 7, 2026
01
Current status
All major flight articles remain in build and test, with first launch still no earlier than 2027. The Eclipse page still records Miranda mission-duty-cycle complete at 206 seconds, matching the longest engine burn during flight. Separately, Firefly posted a 226-second full-power endurance firing that it said ran beyond nominal flight duration. Those are two tests, not a conflict.
02
Specifications5
03
Upcoming milestones1
Announced next steps from Firefly Aerospace that mention Eclipse.
NET 2027
Fly Eclipse for the first time
Continue Eclipse qualification and manufacturing work with Northrop Grumman - including Stage 1 tank testing on the ~100-ft-tall first stage and assembly and bonding of the engine base structure that mounts the seven Miranda first-stage engines - ahead of the medium-lift vehicle's inaugural launch from Wallops. On the Aug 11, 2026 Q2 call Kim said first-stage delivery to Northrop Grumman is targeted no earlier than 2027, with an inaugural launch still planned no earlier than 2027. Firefly's Eclipse page still lists first flight no earlier than 2027 as of September 17, 2026.
04
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05
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