About
Stuff in Space is an open-source, web-based application that provides a stunning real-time 3D map of all tracked objects in Earth's orbit. Built with WebGL and Three.js, it renders thousands of satellites, rocket bodies, and pieces of space debris on an interactive globe that users can rotate, zoom, and explore directly in their browser — no installation required. The tool pulls orbital element data from Space-Track.org and updates positions in real time using standard SGP4 propagation models, giving users an accurate picture of what's currently overhead. Objects are color-coded by category (payloads, rocket bodies, debris), and hovering over any point reveals metadata such as object name, NORAD ID, and orbit type. Stuff in Space is primarily a data visualization and education tool. It is widely used by students learning about orbital mechanics, educators illustrating the scale of the space debris problem, researchers tracking congestion in low-Earth orbit (LEO), and space enthusiasts curious about what's above them at any given moment. The open-source codebase (available on GitHub) also makes it a practical reference for developers building their own space-data applications. Because it runs entirely in the browser using open web standards, it works on any modern device without plugins. It is completely free with no sign-up required.
Key Features
- Real-Time Orbital Tracking: Pulls live TLE (Two-Line Element) data from Space-Track.org and computes current positions using SGP4 propagation, keeping all objects accurately placed in real time.
- Interactive 3D Globe: WebGL-powered Earth globe lets users rotate, zoom, and click on any orbiting object to view its name, NORAD ID, and orbital category.
- Object Categorization: Distinguishes between active payloads, spent rocket bodies, and debris fragments using distinct color coding for quick visual identification.
- No-Install Browser Experience: Runs entirely in modern browsers with no plugins or accounts required, making it instantly accessible to anyone with a web connection.
- Open-Source Codebase: Fully open source on GitHub, allowing developers to fork, modify, and build upon the visualization for their own space-data projects.
Use Cases
- Students and educators visualizing the scale of space debris and orbital congestion for classroom lessons on space science or environmental issues.
- Space enthusiasts tracking which satellites and space stations are currently overhead in real time.
- Researchers and policy analysts illustrating the orbital environment to highlight the growing problem of space debris.
- Developers using the open-source codebase as a reference or starting point for building custom satellite-tracking or space-data applications.
- Journalists and content creators generating accurate visual context for articles or videos about space exploration and orbital mechanics.
Pros
- Completely Free and Open Source: No subscription, no sign-up, and the full source code is publicly available, making it accessible to everyone and extensible by developers.
- Stunning Real-Time Accuracy: Live data from Space-Track.org combined with SGP4 propagation provides a scientifically accurate snapshot of Earth's orbital environment.
- Zero Setup Required: Works instantly in any modern browser without downloads, plugins, or configuration — ideal for classrooms and casual exploration alike.
Cons
- Limited Analytical Features: The tool is primarily a visualization; it does not offer filtering, data export, collision-risk analysis, or other advanced analytical capabilities.
- Performance on Low-End Devices: Rendering thousands of 3D objects via WebGL can be demanding on older computers or mobile devices with limited GPU resources.
Frequently Asked Questions
What data does Stuff in Space use?
It uses Two-Line Element (TLE) sets sourced from Space-Track.org, which is operated by the US Space Force and tracks all officially catalogued Earth-orbiting objects.
How accurate are the object positions?
Positions are calculated in real time using the standard SGP4/SDP4 orbital propagation model, the same algorithm used by most professional satellite-tracking applications.
Is Stuff in Space free to use?
Yes, it is completely free. No account, payment, or installation is required — just open the website in a modern browser.
Can I use the code in my own project?
Yes. The project is open source and hosted on GitHub. You can fork the repository and adapt it for your own space-data visualizations.
How many objects are shown?
The visualization displays thousands of tracked objects, including active satellites, defunct spacecraft, rocket stages, and debris fragments — representing virtually everything officially catalogued in Earth's orbit.
