National Security Journal on MSN

The U.S. Navy’s Big Columbia-Class Submarines Mistake Still Stings

The Navy’s Columbia-class ballistic-missile submarines are the most consequential ships the United States will build this ...

Successful Test of 130-Ton Class Liquid Oxygen-Kerosene Rocket Engine, Deep Blue Aerospace Reveals 3D Printing-Driven Technological Breakthrough

In January 2024, the engine design was validated with a focus on reusability and low cost, completing the design and ...