TULSA, Okla. — The iconic H-1 and J-2 Saturn Rocket engines arrived at the Tulsa Air and Space Museum on Wednesday. H-1 and J-2 Saturn Rocket engines are the same kind used in NASA’s Apollo missions.

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 ...

Two hobbyists show how they can pull off SpaceX’s trick at a smaller scale with custom hardware and a few years of effort. Two hobbyists show how they can pull off SpaceX’s trick at a smaller scale ...