Did dark matter destroy the universe? You might be looking around at the way things "exist" and thinking "No", but we're talking about ancient history. Three hundred million years after the start of the universe, things had finally cooled down enough to form hydrogen atoms out of all the protons and electrons that were zipping around - only to have them all ripped up again around the one billion year mark. Why? Most believe that the first quasars, active galaxies whose central black holes are the cosmic-ray equivalent of a firehose, provided the breakup energy, but some Fermilab scientists have...