Linked from
The 57 pages that link to Protoplanetary disk, each with the reason it gives.
AsteroidRelated: Asteroids originated as solid material in the Sun’s early disk.
Kuiper beltRelated: The Kuiper belt's objects began as planet-building material in the Sun's disk.
Solar SystemRelated: The Solar System’s early disk set the conditions for planet formation.
Gravitational instabilityRelated: Strong disk self-gravity can fragment the disk into bound clumps.
PlanetRelated: Planet formation begins in the material orbiting a young star.
Nebular hypothesisRelated: The disk provides the setting and raw material for planetary assembly.
Planetary systemRelated: It supplies the material from which planets and smaller bodies assemble.
Substellar objectRelated: Disk-based formation can produce objects in the planetary-mass range.
Herbig Ae/Be starRelated: The circumstellar disks around these stars can host planet formation.
TW HydraeRelated: Its disk makes TW Hydrae a direct laboratory for studying planet-forming material.