Everyone loves a controversy. There is a new one brewing, and some astrophysicists are very unhappy because their pet paradigm is in trouble again.
Dark matter, the stuff that allegedly comprises up to 85% of the matter content of galaxies in the universe, has just hit another road block:
“…three physicists claim their observations of empty patches of sky rule out one possible explanation of the strange substance—that it is made out of unusual particles called sterile neutrinos. But others argue the data show no such thing.”