Scientists find crack in laws of physics

CHICAGO -- Scientists at Fermi National Accelerator Laboratory have stumbled across a discrepancy in theories of subatomic particles.

Researchers measured fewer neutrinos -- tiny particles that pass through most ordinary objects -- resulting from atomic collisions than physicists have long predicted.

The surprising data could be a fluke or a change in the laws of physics that alter scientists' opinion about whether the universe will expand or collapse on itself.