The $843 million Space Development Agency contract calls for 18 satellites, which will be deployed in the military agency's Tranche 3 constellation.

Starfish Space has won an SDA contract to deorbit satellites in a missile-tracking and communications constellation.

Sierra Space, a proven defense-tech company delivering solutions for the nation’s most critical missions and advancing the future of security in space, announced today the completion of the first nine ...

The U.S. Space Force could double in size within the next decade as the Pentagon increasingly treats space as a contested military domain rather than a supporting utility, according to the service’s ...

Inside nondescript Building 31 on L3Harris Technologies' Palm Bay campus, technicians are assembling America's next generation of tracking satellites to detect and defend against hypersonic and ...

Orbital tracking data from late 2025 revealed a troubling anomaly: three of Russia's missile-warning satellites ceased their ...

With all nine Merlin engines lit, the Falcon 9 rocket begins its travels Wednesday to deliver 21 satellites for the Space Development Agency's new military communication and missile warning system.

JERUSALEM (AP) — Israel has launched a new spy satellite that defense officials described as a strategic cornerstone, saying it will strengthen their surveillance capacity across the Middle East in ...

China has insisted that its constellation of satellites in geosynchronous orbit is a peaceful project. It is anything but. China is committed to competing with the United States for dominance in space ...

In this photo released by Roscosmos State Space Corporate on Friday, July 25, 2025, a Soyuz rocket lifts off from a launch site in Vostochny in far eastern Russia carrying an Iranian satellite along ...