Gravity Well

An interactive black hole · light traced through curved spacetime

Exhibit controls

Mass

Spin

Viewing angle

Disk brightness

Simulation speed

Ways of seeing

Labels & guides

Auto-orbit camera

Render quality

Reset view

What you're seeing

Vital statistics

Side view · the ray's own plane

Top view · down the spin axis

Where did this light come from?

Drag to orbit · Scroll to zoom · Click the image to trace a ray · H hides panels