Basic physics suggests that electrons are essentially immortal. A fascinating experiment recently failed to overthrow this fundamental assumption. But the effort has produced a revised minimum lifespan for electrons: 60,000 yottayears, which is — get this — about five-quintillion times the current age of the Universe.
For the last few months, physicists have been attempting to explain the apparent discovery of neutrinos traveling faster than the speed of light. No one has as yet refuted this finding, but some other particles may refute these neutrinos' existence.