ScienceDaily (Nov. 5, 2007) — Not only has a
large chunk of the universe thought to have been found in 2002
apparently gone missing again but it is taking some friends with it,
according to new research at The University of Alabama in Huntsville
(UAH). The new calculations might leave the mass of the universe as
much as ten to 20 percent lighter than previously calculated.
The same UAH group that found what was theorized to be a significant
fraction of the "missing mass" that binds together the universe has
discovered that some x-rays thought to come from intergalactic clouds
of "warm" gas are instead probably caused by lightweight electrons.
If the source of so much x-ray energy is tiny electrons instead of
hefty atoms, it is as if billions of lights thought to come from
billions of aircraft carriers were found instead to come from billions
of extremely bright fireflies...
Full article: http://www.sciencedaily.com/releases/2007/11/071102152248.htm