Rocket engineering is shifting from painstaking machining and welding to a world where engines and tanks emerge from printers ...

The world’s biggest social media sites are home to thousands of 2nd Amendment devotees who believe anyone should be able to use a 3D printer to build their own gun. Meta, Discord and the DOJ are ...

For the last hour, in a backroom of a gun range in Arabi, Louisiana, I’ve been building Luigi Mangione’s gun. Well, not his, in the literal sense. The not-quite-finished firearm in my hands is very ...