Firefly Aerospace's Alpha rocket reaches orbit on return flight after 2025 mishaps

Firefly Aerospace's Alpha rocket reached orbit on March 11 during the 'Stairway to Seven' mission from Vandenberg, a reclassified test flight following earlier mishaps in 2025.

Firefly Aerospace launched its Alpha rocket on March 11 in a mission called "Stairway to Seven" and reached orbit. The flight lifted off from Space Launch Complex-2 at Vandenberg Space Force Base at 8:50 p.m. ET. Alpha had experienced two major mishaps during 2025, including an in-flight failure in April and a test-stand explosion in September. The company reframed this mission as a test flight and removed the original payload to focus on verifying stage performance. Key facts: - Launch and trajectory: Liftoff occurred March 11 from Vandenberg Space Force Base; first-stage separation happened about 2 minutes 40 seconds into flight, fairing jettison followed roughly 30 seconds later, and the upper-stage engine cutoff occurred about 8 minutes after liftoff before the vehicle reached orbit at about 151 miles (243 kilometers) altitude. - Previous failures in 2025: In April the "Message in a Booster" mission failed to deliver a Lockheed Martin technology-demonstrating satellite after an anomaly during stage separation; in September a first stage exploded on the test stand during prelaunch testing for this mission. - Cause identified for test-stand explosion: Firefly reported the September mishap was traced to a process error during stage-one integration that resulted in minute hydrocarbon contamination and said a design flaw was ruled out. - Mission changes: The original Lockheed Martin payload was removed and the flight was reframed as a test to validate first- and second-stage performance ahead of later flights. - Vehicle evolution: Firefly will retire Alpha Block I and is preparing a Block II version that will be about 7 feet taller and include upgraded avionics, power systems, and improved thermal protection; Block II is slated to debut on Flight 8. - Program context: Firefly's uncrewed Blue Ghost moon lander completed a lunar surface mission last year, and Alpha has achieved full mission success three times in seven orbital launch attempts. Summary: The Stairway to Seven flight validated Alpha's flight sequence and reached orbit, marking a return to flight operations after 2025 setbacks. Firefly plans to retire the Block I configuration and proceed toward Block II, which is scheduled to debut on Flight 8.