+A protoplanetary disk is a swirling, circumstellar disk of dense gas and dust that encircles a young, newly formed [Star](/wiki/star). This cosmic cradle is where matter gradually coalesces through processes like [Accretion](/wiki/accretion), eventually giving birth to planets, asteroids, and comets.
+## See also
+- [Star Formation](/wiki/star_formation)
+- [Planet Formation](/wiki/planet_formation)
+- [Solar System](/wiki/solar_system)
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