A SpaceX Falcon 9 rocket on Sept. 10, 2025, launched 21 satellites for the Space Development Agency's Tranche 1 Transport Layer from Vandenberg Space Force Base, California. Credit: SpaceX WASHINGTON ...
A row of Transport Layer Tranche 1 satellites made by Lockheed Martin for the Space Development Agency. Credit: Lockheed Martin NATIONAL HARBOR, Md. — The Space Development Agency (SDA) is gearing up ...
The Space Development Agency has sought proposals from industry to design and build satellites for the first tranche of the National Defense Space Architecture’s transport layer. SDA expects the ...
COLORADO SPRINGS—Northrop Grumman announced April 18 that its Tranche 1 Transport Layer (T1TL) satellite constellation network has passed a critical design review (CDR). The Space Development Agency ...
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