We are fascinated by the hybrid rocket engine which [Ben Krasnow] built and ... a valve which connects to the oxygen tank. There is a nozzle on the outflow end. Check out the video after the ...

33,530 people played the daily Crossword recently. Can you solve it faster than others?33,530 people played the daily Crossword recently. Can you solve it faster than others?

SpaceX has offered holiday greetings via a spot of synchronized rocket-engine nozzle steering. The quirky 65-second video — which includes the message: “Wishing you a warm holiday season and a ...

[Sam Rogers] and colleagues at [AX Technologies] have been testing and developing a small liquid-fueled rocket engine and ... just inside the nozzle of the engine, which creates a cooling ...