Researchers demonstrated the first fully 3D-printed, droplet-emitting electrospray engine. The low-cost device can be fabricated more quickly than traditional thrusters, potentially from on board a ...

Formula 1 has always been a sport where the rulebook is treated less like a fence and more like a climbing frame. The latest example is a set of 3D‑printed pistons that let teams flirt with the ...

Rocket engineering is shifting from painstaking machining and welding to a world where engines and tanks emerge from printers as single, sculpted pieces of metal. Instead of treating 3D printing as a ...