When building a model rocket, it can be fun to get into the maths of it all—calculating the expected performance of your build, and then seeing how it measures up in the real world. To aid in that ...

Students at ETH Zurich have developed a multi-metal 3D printing process that can produce rocket engine components in days rather than the months required by traditional manufacturing. The technique, ...

The Earth is much larger than most people realize. You need to use engines if you want to efficiently navigate large sections of the planet. Everything from cars to planes relies on engines, but they ...