Ad Astra is a space mod with a focus on technology, travel, and exploration, built around everything you need to become an astronaut – rockets, space suits, space stations, and machines. It invites you to explore the Solar System (and beyond), with destinations like the Moon and Mars for building, mining, and survival-focused outposts.

The mod adds five celestial bodies – the Moon, Mars, Venus, Mercury, and Glacio – each with its own vibe, mobs, and materials, plus four rocket tiers and a rover for travel. Along the way you also get machines and systems for oxygen generation and distribution, fuel refining, water pumping, cables, fluid pipes, a rocket workbench, over 250 building blocks, and an in-game guidebook that walks you through all of the added progression.

More Planets is one of the most popular addons of Galacticraft. This addon adds new exotic planets with their own environments, plus extra blocks, items, biomes, structures, mobs, machines, bosses, and more.

The mod also gives you a clear progression path for pushing higher rocket tiers built around finding tiered dungeons, collecting dungeon keys, and unlocking treasure chests that can drop higher-tier rocket schematics, then gathering planet-specific resources as you move from destination to destination.

Galacticraft Legacy lets you explore the Solar System and beyond in your own spaceship, with features like planet and moon travel, ship building and customization, dungeons, new mobs, and an oxygen and electrical system that makes space progression feel like a real upgrade. The mod also includes Space Races for teams, flags, and stats, plus survival multiplayer support so you can launch and explore the universe together with friends.

Advanced Rocketry - Reworked is a fork of the original Advanced Rocketry that continued its development, bringing the classic space-progression vibe back to life for 1.12.2.

The mod focuses on modular rockets and bigger space program loops, including asteroid mining missions, satellites (data and terraforming), multiblock machines for crafting parts, multiple solar systems, space stations, custom planets, warp travel, terraforming, and custom recipes, with built-in forge energy support for power integration.

Stellaris adds a next gen space exploration experience to Minecraft where you can discover new planets, moons, and galaxies, then build your own rockets using a component system that supports progressive upgrades and customization.

The mod expands the gameplay loop with planetary exploration that includes different environments and gravity levels, plus advanced tech like energy systems, machinery for extraction and processing, and tools aimed at space survival.

You can also tweak settings to adjust difficulty and complexity, play it in multiplayer, and extend it with datapacks and addons to add planets or create new features.

Cosmic Horizons introduces true space to Minecraft with its own render system and a travel method built around Space Nodules, letting you visit planets and see them rendered even outside your normal render distance. It is marked as very alpha and described as creative mode only, so treat it like a sandbox for testing and exploring what the mod is building going forward.

The mod also adds its own gravity system and planet dimensions with their own conditions, plus new blocks with interactive GUIs, an electricity system, and metal expansion content. In addition, Cosmic Horizons has multiplayer support, beta shader support via Oculus, and datapack support for adding galaxies and GUI implementations.

Create: Northstar brings space exploration into a Create-powered playstyle by introducing a complex rocketry system, an astronomy system, 4 new worlds to explore, 14 new mobs, and more.

This mod leans hard into hands-on space travel – rockets are built from multiple components, and your flight setup revolves around blocks like the Rocket Station (for assembling and picking a destination with a Star Map), Rocket Controls, and the Interplanetary Navigator. Once you start building longer-term off-world setups, it also adds base-focused tech like Oxygen Fillers and a Temperature Regulator with different modes for managing your environment.

Novatech delivers Galacticraft-style space travel, then builds on it with extra planets and gear designed for exploring the Solar System and beyond, with a total of 13 planets to visit. It lays out a tier path for destinations like the Moon (T1), Mars (T2), Venus and Mercury (T3), Asteroids (T3), Jupiter (T4), and Saturn, Uranus, Neptune, and Pluto (T5).

The mod also includes exoplanets and lists places like 51PegasiB, J1407B, and S2B, plus additions like Forge Energy machines, an oxygen system, 3 exoplanets, 5 space suits, new blocks, vehicles, and mobs, 5 new guns, and more weapons to help you survive once things get dangerous out there.

SpaceStation Mod adds a space station you can travel to, plus new resources you can use to craft tools, armor, and blocks.

You travel to the station using the "TAB" key after you craft one of the two permits, then upgrade parts of the station using basic or advanced wafers and the upgrade blocks you see when you arrive. There are three areas you can improve – the room area (beds and decoration), the work area (a dehydrating machine, incinerators, and lockers), and the asteroid area where you can catch asteroids and pull ore from them to make new armor.

Starflight Innovation takes a rocket science approach to space exploration, inspired by Kerbal Space Program and Spaceflight Simulator. You build rockets in Minecraft while managing things like bi-propellant fuel supply, engine thrust and efficiency, and delta-v budgeting as real gameplay mechanics, starting with electric machines that produce hydrogen and oxygen for your first serious launches.

The Moon and Mars are listed as possible destinations, with celestial objects rendered from a working solar system model as you travel. The mod also comes with practical survival-minded systems and guidelines like oxygen and hydrogen tank multiblocks, solar power management, and a space suit maneuvering jet that kicks in when you sneak – just remember it uses your oxygen supply!