Three-year-old Castelion is worth $2.8 billion after raising $350 million to fund its ambition to supply thousands of weapons ...

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

This compilation showcases several cutting-edge American missile systems that demonstrate the evolving power and precision of ...

The company's new Hypersonics System Integration Lab accelerates U.S. hypersonic weapons development, aimed at countering ...

"Castelion is transforming the economics of our defense industrial base, " said Paul Kwan, Managing Director, General Catalyst. "Modern deterrence demands hypersonic capability at a pace, scale and ...

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

Only one American company has the capacity to meet President Trump’s ambitious timeline for the construction of a space-based missile interceptor system: Elon Musk’s SpaceX. Elon Musk is set to win a ...

Iran has many thousands of advanced missiles in its underground stockpiles. If the clerical regime were truly under threat, it would likely use them en masse. The world is inching precariously close ...

The four-star general in charge of developing Golden Dome, Space Force Gen. Michael Guetlein, defended the military’s ...