Tranche 1 Transport Layer – Spaceflight Now

September 30, 2025

Breaking News

[ September 30, 2025 ] Axiom Space taps Portuguese physiologist as first ‘Project Astronaut’ News
[ September 30, 2025 ] Ground testing anomaly destroys Firefly Aerospace’s Alpha booster intended for next flight Alpha
[ September 28, 2025 ] SpaceX launches 28 Starlink satellites on Falcon 9 rocket from Vandenberg SFB Falcon 9
[ September 26, 2025 ] Sierra Space’s Dream Chaser debut mission delayed again, no longer docking to station News
[ September 25, 2025 ] SpaceX launches 24 Starlink satellites on Falcon 9 rocket from Vandenberg Falcon 9

New U.S. military satellite constellation takes shape with first launch from Vandenberg SFB

September 12, 2025 Will Robinson-Smith

The Space Development Agency’s Proliferated Warfighter Space Architecture constellation is expected to deliver global coverage beginning in 2027. Launch from Vandenberg Space Force Base occurred at 7:12 a.m. PDT (10:12 a.m. EDT / 1412 UTC).

Launch preview: Space Development Agency, SpaceX to launch next-gen national security satellites

September 10, 2025 Will Robinson-Smith

The 21 satellites from York Space Systems are the first in the SDA’s Tranche 1 Transport Layer satellite constellation. SpaceX launched from pad 4 East at Vandenberg Space Force Base at 7:12 a.m. PDT (10:12 a.m. EDT / 1412 UTC).