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Plan 5 treats the original eight worlds as historical origins, not mandatory top-level navigation.

planet · planetary

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.

CompareEvidence

Scale

12,756 km equatorial diameter

Structure

rocky terrestrial planet

Formation / process

formed within the early solar system's protoplanetary disk

Observation

visible, infrared, radio and other measurements reveal different properties

Representation

globes and photographs compress a spherical, dynamic world into selected views

Evidence state

Verified / sourced

Core factual statements below are linked to reviewed NASA sources. Descriptive framing is ICU editorial synthesis.

Sourced facts

What this release is claiming.

  • NASA lists Earth's equatorial diameter as 12,756 km.
  • Earth is one astronomical unit from the Sun by definition of the unit's conventional use.

Source register

Trace the claim.

No external image is embedded on this record. Visual treatment is authored CSS/HTML presentation.

Back to AtlasFormation & processRepresentation literacy
VIS-0005 source description status: BLANK_BY_SOURCE. All explanatory expansion in this universe is newly authored for this release candidate and source-bounded where factual.