Tranche 1 Transport Layer – Spaceflight Now

October 2, 2026

Breaking News

[ October 1, 2026 ] Falcon Heavy flies its first mission for U.S. spy satellite agency Falcon Heavy
[ October 1, 2026 ] Fresh crew takes off for six-month stay aboard space station Falcon 9
[ October 1, 2026 ] NASA, SpaceX launch next crewed mission to the International Space Station Falcon 9
[ September 29, 2026 ] NASA plans unpiloted Starliner test flight at end of year News
[ September 28, 2026 ] Starship returns to Earth; rocket splashes down north of Hawaii after three-hour flight Mission Reports

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).