Cosmic Engines.
The universe is not quiet. It runs on engines: gravity wells, plasma jets, collapsing stars, and magnetic fields violent enough to reshape space around them.
The universe is not quiet. It runs on engines: black holes, collapsing stars, magnetic fields, plasma jets, and gravity wells deep enough to bend light. This lab is a guided tour of eight of them.
Pick a cosmic engine. Inspect it from every angle.
Eight procedural Three.js scenes, each a stylized stand-in for one extreme object. Click a card. Drag the canvas to orbit. The engine animates while idle.
Quasar
An active supermassive black hole so bright it can drown out its host galaxy.
A central dark sphere. A flattened glowing disk of in-falling gas. Two narrow polar jets.
Eight short chapters. One engine each.
Why the object exists, what its engine is, and what an astronomer actually sees when they point an instrument at it.
Engines, side by side.
The same eight objects, charted by what powers them, what they emit, and what the visual signature looks like.
| Object | Engine | Energy source | What we observe | Typical scale | Visual signature |
|---|
How this was made.
Visualization
Every 3D scene is generated procedurally with Three.js (r170, ESM, no build step) using primitives, particle systems, additive blending, and a small custom gradient shader for the hero background. There are no large textures or pre-baked GLB assets shipped on this page.
Every visual is stylized. Real cosmic objects span sixty orders of magnitude in scale. None of these models is to scale, and the colors are chosen for legibility, not photometric accuracy. Where we approximate something physical (Keplerian disk rotation, lighthouse pulsar geometry, expanding supernova shells), the simplification is intentional and noted.
If a decorative GLB asset exists at /assets/models/cosmic-engines/<id>.glb, the viewer will load it as a substitute for the procedural scene. None ship by default. See the asset pipeline doc below.
Source list
- NASA · What are active galactic nuclei? ↗
- NASA Hubble · Quasars ↗
- NASA · Black Holes ↗
- NASA · Anatomy of a black hole ↗
- NASA · How do we know there are black holes? ↗
- LIGO · Detections ↗
- Event Horizon Telescope ↗
- NASA · Universe topics ↗
Numbers cited only when source-backed. Where a fact is widely reported but lacks a single canonical source (e.g., total magnetar count), the confidence label is "reported" rather than "official."