Interstellar cloud

An interstellar cloud is a denser-than-average part of the interstellar medium, (ISM). It is matter and radiation in the space between the star systems in a gal…

Interstellar cloud
A small part of the emission nebula NGC 6357. It glows with the characteristic red of an H II region.[1]

An interstellar cloud is a denser-than-average part of the interstellar medium, (ISM). It is matter and radiation in the space between the star systems in a galaxy.

An interstellar cloud is formed by the gas and dust particles from a red giant in its later life.

The cloud is made of gas, plasma, and dust in our and other galaxies.

Its hydrogen can be:

Neutral and ionized clouds are sometimes also called diffuse clouds.

Sources

  1. ↑ "Carved by Massive Stars". ESO Picture of the Week. European Southern Observatory. Retrieved 13 September 2013.


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