Add Yahoo as a preferred source to see more of our stories on Google. SpaceX's mega-rocket Starship is set to launch toward space this weekend, after exploding on its first try. Starship reaching ...

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 ...

"Space jellyfish" leave an ethereal shape in the sky. In rare cases, sometimes the space jellyfish-shaped rocket contrail that follows a launch can transform into another shape. Like a heart. The ...