[chrisser]

Fascinating video.

Has there been any research on what’s within the vast distances between galaxies?

I suppose we can’t really know, since we’re barely able to get a probe out of the solar system and even at that, the distances are almost unimaginable.

[Berlin_Freeper]

dark matter n (Astronomy) Astronomy matter known to make up perhaps 90% of the mass of the universe, but not detectable by its absorption or emission of electromagnetic radiation

Dark Matter Structure Revealed