"We may be seeing hot intergalactic gas in a relatively
pristine state before it has been polluted by gas from galaxies.
This discovery should provide valuable insight into how the most
massive structures in the universe are assembled."
Source: Q. Daniel Wang of the University
of Massachusetts in Amherst, and lead author on an upcoming
Astrophysical Journal article describing a study based on recent
observations from the Chandra X-Ray Telescope.