Full Breakdown
Space Force Halts National Security Launches on Vulcan Rocket Amid Anomaly Investigation
2/27/2026, 4:44:40 AM
Investigation into Anomaly
The U.S. Space Force has suspended all national security launches aboard United Launch Alliance’s (ULA) Vulcan rocket following a performance anomaly observed during the February 12 launch of the USSF-87 mission. This mission successfully deployed two Geosynchronous Space Situational Awareness Program (GSSAP) satellites and an experimental satellite designed for enhanced maneuverability. However, an irregular burn pattern was noted from one of the rocket's Northrop Grumman-built GEM 63XL solid rocket boosters, raising concerns similar to a previous issue experienced during a test flight in October 2024.
Col. Eric Zarybnisky, the Space Force’s portfolio acquisition executive for assured access to space, confirmed that the investigation into the anomaly is in its early stages and may take several months to resolve. “We will not conduct any Vulcan missions until this anomaly is rectified,” Zarybnisky stated during the Air Force Association’s Warfare Symposium in Colorado. The Space Force is currently evaluating options for upcoming missions, including the potential reassignment of the GPS III satellite launch.
Implications for ULA
The suspension of Vulcan launches presents significant challenges for ULA, particularly as the company aims to increase its launch cadence in 2026. Following the recent departure of CEO Tory Bruno, ULA is under pressure to restore operational integrity while navigating a competitive landscape. Mark Peller, ULA’s chief operating officer, indicated that the company is assembling an expert investigation team in collaboration with Northrop Grumman to address the anomaly and ensure future reliability.
Despite the setback, ULA had projected between 16 and 18 launches for the year, with a backlog of over 80 missions spanning military and commercial customers. The company’s interim CEO, John Elbon, expressed confidence in ULA's future, emphasizing a commitment to increasing the Vulcan’s flight rate.
Official Statements & Responses
In response to the anomaly, ULA stated that it is working closely with government partners to determine the root cause of the booster issue. “Until the team has reviewed the data, inspected the spent motor assemblies, and developed and implemented corrective actions, we will not fly another Vulcan mission,” a ULA spokesperson noted.
Col. Zarybnisky highlighted the importance of mission success and the need for thorough investigation: “Anytime there's an anomaly, my team is going to be actively engaged with the contractors to make sure we understand what happened and we correct that issue.”
Criticism & Opposition
The decision to pause Vulcan missions has drawn attention to the complexities of national security space operations. Critics argue that the reliance on a single launch provider, particularly during a time of leadership transition at ULA, could jeopardize mission timelines and operational readiness. The Space Force's ability to pivot to alternative launch providers, such as SpaceX, remains a critical factor in maintaining national security capabilities.
What's Next
As the investigation unfolds, the Space Force will continue to assess its options for upcoming national security payloads. The timeline for the resolution of the Vulcan anomaly remains uncertain, but the outcome will significantly impact ULA's operational strategy and the broader landscape of U.S. military space capabilities.
