Planet formation from interstellar medium

The interstellar medium is thus a chemically diverse medium fed nearly all of the chemical elements by supernova explosions. Conditions in the interstellar medium produce a cocktail of molecules that ultimately find themselves back on the surface of planets during the formation of the new star and solar system. Does the interstellar medium seed life with molecules from space The nature of interstellar medium chemistry might then add credibility to the formation of life in many places within the Universe and act as a panspermia model for the origins of life. 

Both these ice and PAH spectral features are now being used as new probes of the interstellar medium of our Galaxy, the Milky Way and other galaxies throughout the Universe. The ices probe chemical processes in dark clouds and planet forming regions and the PAH features reveal the ionization balance as well as the energetic and chemical history of the medium. This paper has focused on the role of ices in the formation of complex molecules that are part of the raw materials from which stars, planets, satellites, and comets form. 

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