Astrophysics (Index)About

intergalactic dust

(dust not within galaxies)

The term intergalactic dust refers to dust outside of galaxies. There are signs of dust clouds just outside galaxies (including the Milky Way) within and around galaxy clusters, and elsewhere. Apparent reddening of quasars and distant galaxies suggest dust at a low density throughout much of the universe. Interest in its nature is magnified due to the possibility that it could be a significant factor in the cosmic distance ladder and interpretation of Type Ia supernova surveys.

Further reading:

Referenced by pages:
cosmic dust