[nolta]

> So, not only did they find some of the missing matter, they found some of the missing energy, too.

Nope, this has nothing to do with dark energy.

> This does, however, screw some of the more classical cosmologists.

Not sure who you're referring to. These results are completely consistent with the standard model of cosmology.

[ab5tract]

> Not sure who you're referring to. These results are completely consistent with the standard model of cosmology.

Not if what is being detected is simply mass associated with filamentary currents of energy (with attendant magnetic fields) rather than particular particles.

[nolta]

They're modelling filaments as cylindrical tubes of hot electrons connecting pairs of galaxies. I don't know what you mean by "mass associated with filamentary currents of energy", but while the electrons are hot (~million Kelvin), they're non-relativistic and their kinetic energy is negligible.