Cosmic Scale
Build an intuition for size and orders of magnitude
Build an intuition for orders of magnitude: equal steps on the scale multiply size rather than add a fixed distance.
Key idea
An order of magnitude represents a factor of ten. Logarithmic travel makes enormous size differences navigable: equal steps represent equal multipliers, not equal added distances. The reference objects help anchor otherwise unfamiliar scales.
Try this first
Begin near a familiar object and zoom outward by equal steps. Compare how many times the scale changes, not just how far an object moves on screen. Then reverse the zoom and connect a very large distance back to a more familiar scale.
How to get started
- Move the zoom control or choose a size landmark to travel through orders of magnitude.
- Select an object and choose another under Compare with to read their size ratio.
- Switch to the distance view to compare the spaces between cosmic landmarks.
Explore a little further
Try another experiment
Choose two reference objects and estimate their size ratio before reading the scale. Count factors of ten between them. Then compare that multiplicative gap with another pair at a much larger overall scale.
Good to know
The experience uses a logarithmic scale: equal travel represents multiplication. Objects provide scale references; their screen separation is not a map of their actual positions in the universe.
Public Lite tools share 20 free minutes a day, without an account. New accounts receive a 10-day full-access trial without a card. Paid access continues under the selected plan.
Compare access options →