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

compact object class · compact/extreme

Black holes

A black hole is a case study in seeing by effects: evidence often comes from what surrounding matter and light do.

CompareEvidence

Scale

physical size depends on mass; visual influence can extend far beyond the horizon

Structure

extreme concentration of matter bounded by an event horizon

Formation / process

multiple formation channels exist; stellar-mass and supermassive cases have different histories

Observation

inferred from effects on nearby matter/light and, in some cases, horizon-scale imaging

Representation

many familiar black-hole images are simulations or artist concepts

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 describes the event horizon as a boundary beyond which light cannot escape.
  • Astronomers often identify black holes through their effects on surrounding stars, gas and light.

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.