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In graph Frontier
AstronomyEstablished

Exoplanet

An exoplanet or extrasolar planet is a planet outside the Solar System.

ExoplanetPlanetBiosignatureDrake equationDoppler spectroscopyPlanetary migrationTransit methodRadial velocity methodExoplanet atmosphere

At a glance

Type
systems
Disciplines 1
Astronomy
Mental models 0
—
Role in the graph
Cross-disciplinary bridge
reaches 2 discipline lenses

Key signals

Cross-disciplinary reach
Disciplines
1
  • Astronomy
Evidence & development

Dependencies

What this concept builds on and what it makes possible — derived from the atlas’s dependency, causal and structural relations, not from every related edge.

System context

Exoplanetis aPlanetEstablished

Open Planet →

exoplanet is a kind of planet.

Mechanism: An exoplanet is a planet that orbits a star other than the Sun — the same kind of world, just in another solar system.

Sources:
Exoplanet atmosphereis part ofExoplanetEstablished

Open Exoplanet atmosphere →

The planet's gas envelope.

Mechanism: An exoplanet's atmosphere carries the chemical clues to its climate and possible life.

Hot Jupiteris aExoplanetEstablished

Open Hot Jupiter →

A giant on a tight orbit.

Mechanism: A hot Jupiter is a gas giant orbiting its star in days, the first kind of exoplanet found.

Sub-Neptuneis aExoplanetEstablished

Open Sub-Neptune →

The commonest size.

Mechanism: Sub-Neptunes, between Earth and Neptune in size, are the most common planets found.

Super-Earthis aExoplanetEstablished

Open Super-Earth →

Bigger than Earth, rocky.

Mechanism: A super-Earth is a rocky planet heavier than Earth yet lighter than Neptune.

Structural role & consequence

Interpreted from the current atlas graph — what the connections mean, not just how many there are.

  • Removing this node severs the only sampled structural route between Biosignature and Planetary migration — a non-redundant bridge here.

    structural · Structural removal simulation — not a historical or causal counterfactual.

  • Currently dark in the atlas: no key date stored · 12 of 12 of its relations lack claim-level evidence.

    atlas representation · Describes the current Thinking OS representation, not the state of the world.

  • Structural neighbourhood: 12 → 26 → 46 concepts reachable within 3 hops.

    structural · Structural reach — being reachable is not the same as being understood.

25%

cross-field
9 within-field, 3 cross-field

0 of 12 relations carry evidence · concept has a verified source

Strengths & constraints

Constraints

  • Evidence coverage currently thin in the atlas — few of its relationships carry claim-level evidence. atlas representation
  • Non-redundant bridge — removing it severs a sampled route between neighbouring clusters. structural
  • No dated history stored — the atlas records no key date for this concept. atlas representation

Conditions

  • Read structurally — most of its relationships carry no external evidence yet, so claims here are graph-derived. structural

Seen through each discipline

How this concept sits in each of its fields — derived from its real connections in the graph, not asserted.

Astronomy

Through this lens it connects to Planet, Exoplanet atmosphere, Sub-Neptune and Doppler spectroscopy.

Exoplanet through the Astronomy lens →

Concepts that look related but are not yet connected here — candidates for a connection to reason about, not established links.

This idea also appears in…

The same structure shows up in other disciplines. These are real recurrences drawn from the graph — a starting point for asking “what carries over, and what changes?”

Concepts

The scientific picture
  • Connects 12 other ideas across 1 discipline.
  • A cross-disciplinary bridge — its connections reach into 2 other fields.
  • Most of its connections are of the “Teaching link” kind.

Derived from the graph’s real structure — observations, not a score.

Sources