Earth as a scale anchor
Use Earth as the first rung of the scale ladder: familiar in size, but already dependent on viewpoint and sensing method.
Scale: planetary
Outerspace · Field Atlas
Field Atlas
Ten reviewed anchors across planetary, stellar, interstellar, galactic and cosmological scales. The atlas is deliberately small enough that every record can show its evidence boundary.
Browse
Nested structures, not isolated cards.
Use detail records to move into formation, sensing and representation. “Scale band” is a browsing aid, not a formal astronomical taxonomy.
Solar System
A gravitationally organized system whose familiar diagram is almost always a scale compromise.
Scale: system
Planetary systems
Our solar system is one example of a broader class whose architectures can differ substantially.
Scale: system
Stars
Stars are engines of light, fusion and element cycling, not interchangeable points on a black background.
Scale: stellar
Nebulae
Nebulae are not one visual type; similar-looking clouds can occupy very different physical contexts.
Scale: interstellar
Milky Way
Our home galaxy is simultaneously an observable sky structure and a reconstructed global form.
Scale: galactic
Galaxies
Galaxies give structure to visible cosmic matter, but their shape labels are descriptive tools rather than complete histories.
Scale: galactic
Cosmic web
At the largest scales in this release, galaxies collect into a filament-and-void pattern that demands representation literacy.
Scale: cosmological
Black holes
A black hole is a case study in seeing by effects: evidence often comes from what surrounding matter and light do.
Scale: compact/extreme
Earthrise
Earthrise is both evidence of a viewpoint and a powerful historical representation of planetary scale.
Scale: observational/history