SpaceX Rocket and USAF Missile Test Set for Vandenberg Hours Apart

Vandenberg Space Force Base in Santa Barbara County, California, is preparing for a rare convergence of aerospace activity, with a SpaceX Falcon 9 rocket launch followed hours later by a U.S. Air Force Minuteman III intercontinental ballistic missile (ICBM) test. The SpaceX launch is scheduled to lift off between 7:11 p.m. and 9:01 p.m. Pacific Time on Tuesday, May 20, 2026, from Space Launch Complex-4. Hours after the Falcon 9 departs, an Air Force Minuteman III missile test, designated Glory Trip 256, is slated to launch between 12:01 a.m. and 6:01 a.m. Pacific Time on Wednesday, May 21, 2026, from an underground silo.

The SpaceX Falcon 9 mission will deploy 24 Starlink satellites into orbit. This particular Falcon 9 first-stage booster is making its second flight and is expected to land on a droneship stationed in the Pacific Ocean approximately eight minutes after liftoff. SpaceX will provide a live webcast of the launch, accessible via spacex.com/launches and the company's X account, beginning about five minutes before the scheduled liftoff.

In contrast, the Minuteman III missile test will not feature a live webcast. These routine tests, which target a predetermined location in the central Pacific Ocean, are scheduled years in advance and are not a reaction to current global events, according to military officials. The purpose of the ICBM test program is to ensure the effectiveness, readiness, and accuracy of the weapon system. The U.S. Air Force maintains a fleet of approximately 400 Minuteman missiles and is currently developing its next-generation ICBMs.

Aerospace Activity Over California Skies

The dual launch events highlight Vandenberg Space Force Base's critical role in both commercial satellite deployment and national defense. The base, located in northern Santa Barbara County, is a vital hub for national security space launches and strategic missile tests. Such closely scheduled events underscore the dynamic nature of aerospace operations, requiring meticulous coordination between military and commercial entities.

Residents and observers in the Lompoc Valley and surrounding areas may have opportunities to witness the SpaceX rocket's ascent, particularly if conditions are favorable near sunset or sunrise. Viewing locations include the peak of Harris Grade Road, west of Lompoc, and areas in Vandenberg Village. While the rocket's trajectory might be visible across parts of California and potentially other Western states under clear skies, the Minuteman III test launch is a more isolated military operation. These launches and tests are subject to delays due to various factors, including technical issues, weather conditions, and logistical scheduling conflicts.

These tests are crucial for maintaining the readiness of the U.S. nuclear deterrent. The Minuteman III has been the backbone of America's land-based strategic missile force for decades, and regular testing ensures its reliability and provides valuable data for future systems. The SpaceX launch, meanwhile, contributes to the growing constellation of satellites aimed at providing global internet access through the Starlink network. The juxtaposition of a commercial satellite deployment with a strategic missile test offers a unique glimpse into the diverse and complex operations conducted at Vandenberg.