+A **molecular cloud** is a dense, cold region of the [Interstellar Medium](/wiki/interstellar_medium) where matter predominantly exists in molecular form, primarily hydrogen. These vast cosmic nurseries are the birthplace of stars, collapsing under their own gravity to initiate [Star Formation](/wiki/star_formation).
+## See also
+- [Nebula](/wiki/nebula)
+- [Protostar](/wiki/protostar)
+- [Galaxy](/wiki/galaxy)
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