Space Force orders 36 more Golden Dome missile-tracking satellites, for $1.75 billion
space.com Jul 21, 2026

Space Force orders 36 more Golden Dome missile-tracking satellites, for $1.75 billion

AI-summarised brief · reviewed before publication

The U.S. Space Force has secured 36 new Accelerated Missile Defense Tranche 3 satellites from L3Harris Technologies and Sierra Space, adding to its Golden Dome missile‑tracking constellation. The contracts, totaling $1.75 billion, will deliver 18 infrared‑sensor spacecraft to each company, with launch readiness by the end of 2028. The satellites will expand the SDA Proliferated Warfighter Space Architecture’s Tranche 3 Tracking Layer, providing global stereo coverage of hypersonic and ballistic threats. The addition brings the Tranche 3 constellation to 108 satellites, valued at roughly $5.25 billion.

💡 Why It Matters

  • · This expansion sharpens the U.S.
  • · missile‑defense edge by filling critical gaps in global tracking coverage, enabling faster, more accurate threat detection and response for joint forces.