SpaceX Falcon 9 launches 21 military satellites into orbit

The launch was originally targeted for October 5

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Published October 10, 2026
SpaceX Falcon 9 launches 21 military satellites into orbit

SpaceX Falcon 9 successfully launched the Falcon 9 carrying the SDA’s fourth Tranche 1 data transport mission from Vandenberg Space Force Base.

The launch was aimed at sending 21 military satellites to low-Earth orbit comprising the fourth orbital plane in the SDA’s proliferated LEO architecture.

Approximately six minutes after liftoff, the first-stage booster successfully landed at LZ-4, marking another seamless reusability milestone.

The space vehicle launched will provide data transport as a part of the SDA’s Proliferated Warfighter Space Architecture which is a mesh network of optically connected satellites in orbit.

The network delivers global military tactical communications and missile warning, indication and tracking capabilities.

This is the fourth of nine contracted Tranche 1 missions for the SDA flown by SpaceX on a Falcon 9 rocket. This mission marks the sixth launch for the first-stage booster, which previously supported NROL-179, SDA-T1TL-E, and three Starlink missions.

The launch was originally targeted for October 5, the mission was scrubbed for additional vehicle system checks and range deconfliction before achieving a healthy status ahead of launch.

Aqsa Qaddus Tahir
Aqsa Qaddus Tahir is a reporter dedicated to science coverage, exploring breakthroughs, emerging research, and innovation. Her work centres on making scientific developments understandable and relevant, presenting well-researched stories that connect complex ideas with everyday life in a clear, engaging, and informative manner.
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