These are the best model rockets ahead of Amazon Prime Day, featuring NASA and Blue Origin, as well as STEM rockets, all ...

From the GeekDad mailbag, we’ve received the following request: My son and I have decided to build and fly our own model rocket. However, I am hopelessly mechanically and electronically dopey. I ...

There is a reason building a rocket engine is harder than most things you want to build. If you are building, say, a car, your goal is to not have it explode. If you are building a bomb, you want t… ...

Using a combination of 3D-printed and machined metal parts, Barnard also developed a way to control the amount of thrust produced by solid-fuel rocket engines, which don’t have an off switch ...

You might call it a base model. If one were so inclined, ... Make A Hybrid Rocket Engine With Pasta, Hydrogen Peroxide, And Yeast. Posted: March 27, 2025 | Last updated: March 27, 2025.

The LEM had the advantage of an extremely throttleable engine: the hypergolic pintle-injected pressure-fed LMDE. It could operate down to 10% throttle, which is absurdly low for any rocket engine ...

Model rocket enthusiasts are learning how to do vertical landings. Two hobbyists show how they can pull off SpaceX’s trick at a smaller scale with custom hardware and a few years of effort.