Interstellar media

thumb|right|upright=1.5|True color image of the Trifid Nebula, showing complex gas and plasma structure

matter and radiation in the space between the star systems in a galaxy

cavity in the interstellar medium which contains the Local Interstellar Cloud

accumulation of gas, plasma and dust in a galaxy

mechanism which causes the collapse of interstellar gas clouds and subsequent star formation

Empty region of space adjacent to the Local Group of galaxies.

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cavity light years across filled with gas blown into the interstellar medium from a hot star

very old dust in space

cavity in the interstellar medium (ISM) of the Orion Arm of the

Imidogen is an inorganic compound with the chemical formula NH. Like other simple radicals, it is highly reactive and consequently short-lived except as a dilute gas. Its behavior depends on its spin multiplicity.

in astronomy, filamentary structures seen in infrared light

area of sky useful for deep space observations due to low levels of neutral hydrogen gas

accretion of matter within the interstellar medium

largest mass that an isothermal gas sphere embedded in a pressurized medium can have while still remaining in hydrostatic equilibrium

type of interstellar matter formations found in molecular clouds

absorption features in the spectra of astronomical objects in the Milky Way and other galaxies

ice that forms in the interstellar medium

area of interstellar space containing dust that obscures background light from reaching the viewer

natural objects that originated in outer space

variation in the Hubble constant

powerful stream of charged particles that can push interstellar dust clouds of low density into intergalactic space

type of interstellar medium region