With $350 million in new funding, Castelion is among the companies racing to make the U.S. competitive with Russia and China ...

The North American X-15 did more than set records; it quietly redrew the map of what a piloted aircraft could survive at the ...

Hypersonic weapons are in the spotlight. Here’s how they work, why they matter, and what current programs in Russia, China, ...

Kratos is not just using its own Erinyes system for MACH-TB, and is including other partner systems as part of the overall ...

The Navy is seeking to boost prototype efforts for hypersonic all-up-rounds of varying sizes and launch capabilities, according to a request for solutions released today.

Inspired by ‘novel sustainable technology’ research, the team designs a single, powerful system using solar energy for ...

An important part of data collection for the United States space program, the North American X-15 had astonishing performance ...

The Series B raise follows a steady funding climb. In January 2025, Castelion reported a $100 million infusion that included ...

Castelion raised $350 million in Series B funding from Altimeter Capital, Lightspeed Venture Partners and other investors.

He has covered airlines and aerospace at Bridgewater Associates, the world’s largest hedge fund, and served major industry ...

Hypersonic vehicles aren't much use if you don't know where they're going, so Northrop Grumman is developing new navigation ...

Stratolaunch previously announced it received $24.7 million from the Missile Defense Agency for a hypersonic flight test targeted for late 2025.