- Jul 8, 2003
High-energy cosmic neutrinos traced back to their home quasars
There are billions of tiny particles called neutrinos streaming through your body right now. But where did they come from? Russian researchers have now traced back some ultra-high energy neutrinos to their points of origin – radio flares from raging quasars.
Neutrinos are elementary particles with a neutral charge and almost no mass at all. They’re extremely common, produced in nuclear reactors and weapons, the Sun, supernovae, and cosmic rays interacting with the Earth’s atmosphere.