Linked from
The 22 pages that link to Planetesimal, each with the reason it gives.
Protoplanetary diskBroader topic: It is a key intermediate between disk grains and planets.
PlanetBroader topic: Planetesimals are the building blocks that collide and grow into planets.
Oort cloudBroader topic: Objects scattered outward during planet formation began as planetesimals.
Pebble accretionBroader topic: Many models start pebble accretion with a planetesimal seed.
Core accretionBroader topic: Planetesimals provide building material for the growing planetary core.
Impact eventRelated: Planetesimal collisions helped assemble larger planetary bodies.
VestaRelated: Vesta is a surviving large remnant of the planetesimal population.
ProtoplanetBroader topic: Repeated mergers among planetesimals build larger planetary bodies.