The observation of a light pulse leaving a gas-filled chamber before it had even arrived sparked a media frenzy, yet the laws of physics have remained intact.
Nothing can travel faster than light.
Despite a recent raft of reports in the media, this statement is as true now as it ever was. A massive object needs infinite energy to reach c , while massless particles like photons always carry their energy at precisely the speed of light. More importantly, the relativistic notion of simultaneity makes it clear that no information can travel faster than light without throwing all our concepts of cause and effect into disarray. Since most physicists still believe that cause needs to precede effect, we conclude that no information can be transmitted faster than the speed of light. Nevertheless, velocities greater than c can be observed.