Tranche 1 Transport Layer – Spaceflight Now

December 1, 2025

Breaking News

[ November 30, 2025 ] SpaceX kicked off December with predawn Falcon 9 rocket launch Falcon 9
[ November 28, 2025 ] SpaceX launches 140 spacecraft on Transporter-15 rideshare mission Falcon 9
[ November 27, 2025 ] NASA astronaut, two cosmonauts take Thanksgiving Day ride to space station News
[ November 27, 2025 ] BlackSky confirms it was the ‘confidential customer’ on recent Rocket Lab Electron rocket launch Electron
[ November 26, 2025 ] SpaceX scrubs Transporter-15 launch, targets Friday for next attempt 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).