Advanced Rocketry

Advanced Rocketry is a mod created by zmaster587. As the name suggests, it adds custom rockets that can be used to go to asteroids and planets, as well as space stations and satellites. Its machines use Redstone Flux and multiblock structures for most of its devices.

If you're having troubles building a certain device, where blocks have to be placed in a certain position, you can use the Holograph. While holding shift and moving the scrollwheel you can change the layer from the blocks, or display all of the layers at once.