Space MOC Community

Very active Facebook group where many of the creators and builders post new MOCs, discuss builds, and share their enthusiasm for LEGO rockets, launch vehicles, and spacecraft. Extensive Files section with MOC designs and build instructions.

This is the ULTIMATE list of MOCs with launch vehicles, spacecraft, launch facilities, and mission & support models. Lists all scales and includes links to sources.

Reddit community with discussion and showcase of Lego rockets and launch vehicles. Many MOC creators post ideas here for feedback while builders share photos of their fleets.

Another great Facebook group for space MOCs including many science fiction space vehicles as well as prototype rockets.

Focused on LEGO spacecraft MOCs for existing or planned spacecraft and also open to science fiction ships.