Space GitHub Repositories (2026) · Open Source Tools

Space exploration, trading, and combat game.

The General Mission Analysis Tool (GMAT) is the world's leading enterprise, multi-mission, open source software system for space mission design, optimization, and navigation. The system supports missions in flight regimes ranging from low Earth orbit to lunar, libration point, and deep space missions. NOTE: Non-release tagged commits are AS IS.

Browser-based ground station suite for celestial body, mission and satellite tracking, SDR reception, hardware control, and telemetry decoding

A framework for mission control

Elodin simulation and flight software monorepo.

Real-time 3D visualization of space.

The /tg/station branch of SS13.

SpiceyPy: a Pythonic Wrapper for the SPICE Toolkit.

🍰 Kami is mx-space's web frontend theme. Colorful, flat, cute and comfortable.

OREKIT is a free low level space dynamics library written in Java. Please visit our Gitlab instance for issues and contributions: https://gitlab.orekit.org

This is the GitHub home of Race Into Space, the computer version of the Liftoff! board game by Fritz Bronner. It was developed by Strategic Visions and published by Interplay as a disk-based game in 1993 and a CD-ROM in 1994. It was open-sourced in 2005 and a number of improvements have been made over the original.

Python-based Space Physics Environment Data Analysis Software

PlanDev - A software framework for modeling spacecraft.

I/O interface and utilities for CCSDS binary spacecraft data in Python. Library used in flight missions at NASA, NOAA, and SWRI

A practical astrodynamics for research and engineering applications

Collaborative Multiphysics Cosimulator For Space Missions 🌎🚀🌚