Truth status
Fact: source-linked scientific or historical statement.
Editorial synthesis: ICU-authored organization, comparison or connection.
Teaching model: deterministic interface used for explanation, not a scientific simulation.
Outerspace · Sources & Rights
Inspect the evidence register.
This candidate uses institutional NASA sources for its factual core and no copied third-party imagery.
Media / rights status
No external media file is shipped in this delta. Visuals are CSS/HTML/SVG authored for this candidate. External source pages are linked for provenance only.
If documentary NASA media is added later, its individual asset credit/usage status should be reviewed and recorded instead of assuming a blanket license.
What is the Universe?
NASA Science · accessed 2026-09-15
Supports: scope of universe; nested cosmic context
https://science.nasa.gov/exoplanets/what-is-the-universe/Galaxies
NASA Science · accessed 2026-09-15
Supports: galaxy definition; galaxy forms; large-scale organization
https://science.nasa.gov/universe/galaxies/Large Scale Structures
NASA Science · accessed 2026-09-15
Supports: cosmic web; clusters and walls; voids
https://science.nasa.gov/universe/galaxies/large-scale-structures/Sensing the Universe
NASA Science · accessed 2026-09-15
Supports: electromagnetic spectrum; multimessenger astronomy; representation by wavelength
https://science.nasa.gov/universe/sensing-the-universe/Stars
NASA Science · accessed 2026-09-15
Supports: star formation; stellar lifetime; fusion
https://science.nasa.gov/universe/stars/Star Lifecycle
NASA Science / Webb · accessed 2026-09-15
Supports: stellar lifecycle; recycling of stellar material
https://science.nasa.gov/mission/webb/star-lifecycle/Decoding Nebulae
NASA Science · accessed 2026-09-15
Supports: nebulae as gas/dust clouds; star-birth and star-death contexts
https://science.nasa.gov/universe/stories/quick-reads/decoding-nebulae/Black Holes
NASA Science · accessed 2026-09-15
Supports: event horizon; black-hole observation boundaries
https://science.nasa.gov/universe/black-holes/Planetary Systems
NASA Science · accessed 2026-09-15
Supports: planetary systems; protoplanetary disks; planet formation
https://science.nasa.gov/universe/stars/planetary-system/Solar System: Facts
NASA Science · accessed 2026-09-15
Supports: solar-system formation; Milky Way placement; solar-system structure
https://science.nasa.gov/solar-system/solar-system-facts/Our Milky Way Galaxy: How Big is Space?
NASA Science · accessed 2026-09-15
Supports: Milky Way approximate scale; light-year explanation
https://science.nasa.gov/universe/exoplanets/our-milky-way-galaxy-how-big-is-space/Facts About Earth
NASA Science · accessed 2026-09-15
Supports: Earth diameter; astronomical unit context
https://science.nasa.gov/earth/facts/Image: Earthrise
NASA Science · accessed 2026-09-15
Supports: Apollo 8 Earthrise provenance; representation-history anchor
https://science.nasa.gov/resource/image-earthrise/