NEUTRINO PHYSICS:
Polymorphous Particles Solve Solar Mystery
Charles Seife
In the late 1960s, physicists calculated the number of relatively energetic neutrinos that should be streaming from the sun, but experiments came up short. Canada's Sudbury Neutrino Observatory has now cleared up the mystery of the missing neutrinos, confirming what several experiments had already indicated: The missing neutrinos had simply changed flavor.