Interstellar Molecular Clouds

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Science  11 Apr 1986:
Vol. 232, Issue 4747, pp. 185-193
DOI: 10.1126/science.232.4747.185


The interstellar medium in our galaxy contains matter in a variety of states ranging from hot plasma to cold and dusty molecular gas. The molecular phase consists of giant clouds, which are the largest gravitationally bound objects in the galaxy, the primary reservoir of material for the ongoing birth of new stars, and the medium regulating the evolution of galactic disks.