Eclipse

Eclipse will build upon Firefly's existing Alpha vehicle and will be significantly larger and more capable. Firefly is cooperating closely with Northrop Grumman for development. Its first stage will utilize seven Miranda tap-off cycle kerolox engines, whereas its second stage will use a vacuum-optimized variant named Vira. It retains the two-stage architecture, linerless carbon composite tanks and fairings from Alpha. Its first flight is planned for 2026 from Wallops Flight Facility in Virginia. Firefly intends to pursue propulsive landings and reuse of the first stage in the future.